You said..."Baytril is hard on the kidneys so hydration may be difficult"...baytril does not make it hard to hydrate the chameleon...not giving the chameleon enough water (extra water) when its on baytril can increase the chances of kidney damage.
You said..."When should she be laying her eggs?"...some of them can lay eggs before they are 5 months old...some never lay them. It depends to some extent on how you look after the chameleon...how much you feed her and the temperature you keep her at...and maybe even whether she sees a male or not.
You said...." When she does get ready what do I do?"...since she is already old enough to lay eggs, I would recommend putting an opaque container of washed playsand in her cage so she can dig when she is ready to lay the eggs. This will help her to not become eggbound. The minimum size of the container should be 12" deep by 12" by 8". When she starts digging in this rather small container in her cage you have two choices...leave her and see if she will lay them there...or move her to a large container so she can lay them in it. What ever you do, do not let her see you watching her when she is digging or she will likely abandon the hole. Generally they do start the laying process at night. There is no definite answer to egglaying...some will lay just about anywhere and others are fussy. Some dig several test holes and then settle on one...some just dig one hole and lay the eggs there. You just have to go with the flow and watch for signs that things are not going right. One more thing, do not move them back and forth from the cage to the bucket/large container.
Gutloading...I usually put several things in at once to gutload the insects...but then I have turtles and other omnivores who need a salad every couple of days. Dandelion, endive, squash, sweet potato, carrots, zucchini, squash, sweet red pepper, kale, collards, etc. are all good to use. I always give them to them raw...but I've heard that slightly cooking the sweet potato is actually more nutritious for them.
You can freeze. I think the only vitamin that might be depleted from freezing it is the B vitamins.
You said..."where do you get dandelion, endive and kale?"...most of the greens I get at the grocery store....Metro, Longo's, the Superstore and even some Walmarts have them.
I've been told not to use oatmeal...it has a lot of phos. in it I think.
Here is some information that might be useful...
Exposure to proper UVB, appropriate temperatures, supplements, a supply of well-fed/gutloaded insects, water and an appropriate cage set-up are all important for the well-being of your chameleon.
Appropriate cage temperatures aid in digestion and thus play a part indirectly in nutrient absorption. For a basking light you can use a regular incandescent household bulb in a domed hood...but I use a double fluorescent fixture that has one regular fluorescent light in and one Reptisun 5.0 UVB tube light since that puts the temperature in the right range.
Exposure to UVB from either direct sunlight or a proper UVB light allows the chameleon to produce D3 so that it can use the calcium in its system to make/keep the bones strong and be used in other systems in the chameleon as well. The UVB should not pass through glass or plastic no matter whether its from the sun or the UVB light. The most often recommended UVB light is the long linear fluorescent Repti-sun 5.0 tube light that I mentioned above. Some of the compacts, spirals and tube lights have caused health issues, but so far there have been no bad reports against this one.
Since many of the feeder insects have a poor ratio of calcium to phosphorus in them, its important to dust the insects before you feed them to the chameleon with a phos.-free calcium powder to help make up for it.
If you dust twice a month with a phos.-free calcium/D3 powder it will ensure that your chameleon gets some D3 without overdoing it. It leaves the chameleon to produce the rest of what it needs through its exposure to the UVB light. (Some UVB lights have been known to cause health issues, so the most often recommended one is the long linear fluorescent Repti-sun 5.0 tube light.) D3 from supplements can build up in the system but D3 produced from exposure to UVB shouldn't as long as the chameleon can move in and out of it.
Dusting twice a month with a vitamin powder that contains a beta carotene (prOformed) source of vitamin A will ensure that the chameleon gets some vitamins without the danger of overdosing the vitamin A. PrEformed sources of vitamin A can build up in the system and may prevent the D3 from doing its job and push the chameleon towards MBD. However, there is controversy as to whether all/any chameleons can convert the beta carotene and so some people give some prEformed vitamin A once in a while.
Gutloading/feeding the insects well helps to provide what the chameleon needs....so its important too. I gutload crickets, roaches, locusts, superworms, etc. with an assortment of greens (dandelions, kale, collards, endive, escarole, mustard greens, etc.) and veggies (carrots, squash, sweet potato, sweet red pepper, zucchini, etc.)
Calcium, phos., D3 and vitamin A are important players in bone health and other systems in the chameleon (muscles, etc.) and they need to be in balance. When trying to balance them, you need to look at the supplements, what you feed the insects and what you feed the chameleon.
Here are some good sites for you to read...
http://chameleonnews.com/07FebWheelock.html
http://web.archive.org/web/200605020...Vitamin.A.html
http://web.archive.org/web/200604210...d.Calcium.html
http://www.uvguide.co.uk/
http://raisingkittytheveiledchameleon.blogspot.com/
http://web.archive.org/web/200601140...ww.adcham.com/