Putting meal worms in the fridge makes them slow down and last longer. Meal worms are not a very good feeder because they are very hard and do not have a lot of meat on them.
If he the breeder will have another clutch I would wait to get it. In the wait I would get the cage setup and do research to get back into the swing of things.
Im not sure on the limit but im sure it would hold 100. I would put a good amount of egg create in it so the crickets can get the most use out of the space.
I like simple names. My chams name is Mr. Cham or for formal events it Mr. Chameleon. My painted turtles name is Mr. Turtle and my ball python is Tuna.
I would invest in an automatic mister if I were you. They are much better than doing it by hand. Are you sure he is a he? Sleeping during the day is a bad sign and a vet visit may be in order.
Im sure just about any hardware store would have a valve that size. Thats a pretty small pipe and it shouldn't be to hard to find something in both pvc or brass.