Would a dog soft crate work as a brooder for up to 18 bantams? I have one similar to this laying around http://www.choicepets.co.uk/images/prod/15520f.jpg except mine has a solid back and half the top. It's 19x23x30H. The front and top unzips. I'd just have to patch a small hole caused by some orphaned baby cottontails I was using it for. What should I use for heat? I tried a standard table lamp with 60w bulb and the highest the thermometer got to was 85F with the lamp in the crate.