I keep mine in a 90 qt tub, with some foil tape around the top just incase they get a foothold and alot of egg crates. When I need them to be in full swing I keep about half the bottom at about 95 degrees with the cool side in the 80's. Make sure you give them some sort of protein in their diet, I have been using a whey protein (the weight gain stuff from the health food store, mine love the chocolate flavor) mixed in with some ground high quality dog food. For water I have been using the water crystals with no issues. There is a guy on ebay that sells them in the dry form pretty cheap. They will also take any fresh vegetables you have.

Start with as many adults as you can, you will have a nice colony in no time. As to where to get them I don't know exactly which place online sells them but I know there used to be a few...if you don't have alot of luck finding them just send me a message and I can work something out (mine are only used for the tarantulas these days so I can spare quite a few).