I understand the whole "hard to setup" thing with a 10gal... I have my yearling corn in one and barely have enough room for the stuff.

My suggestion on UTH would be ZooMed 10-20 gal heat mat. Also a suggestion on hides: get two identical ones, just small so they both fit. My corn has two "Den and Dine" stump hides and he just loves them. And they both fit quite well in the tank with room to spare for his water dish and climbing "tree".

Also remember that the water bowl doesn't have to be really big...especially in a small tank.

Good luck