Female Panthers; Cover Soil?

[ReptiGeek]

Hello everyone,
I've got some pretty exciting news, today I am taking in a 1.5 years old female Ambilobe panther chameleon who hasn't seen the best of care and I am hoping to change that. I've been doing tons of research on females, but haven't seen anything about covering up her plant soil with large rocks. Is it necessary? I'm not talking about her laying bin, I know that will be exposed. BTW while I'm mentioning it, what do you guys recommend for laying bin substrate. I have seen everything from play sand to organic soil. I have easy access to organic soil but I want what is best for her.
Thank you to everyone in advance, hope you have a great weekend,
Travis

 

[ReptiGeek]

Also she is quite underweight for her age (just by seeing pictures, I'll weigh her as soon as I get her) and I was wondering what a recommended feeding schedule should be for her. I was thinking I would start with every day for the first week, then switch over to every other day and cut down on the amount of feeders at a time.
For feeders that she has access to readily I have:
-Crickets (4 weeks)
-Super worms (medium-large)
-Meal worms (every size)
-Dubia Roaches (every size)
-Indian walking sticks (every size)