I know! We've talked about the UV before but I never got one since I put him back into the larger tub. I was already thinking about getting him out to the garage since we set it up as a gym and it's pretty much escape proof. Then outside if I think I can contain him, the sun would be great for him.
The only thing that's stopped me before is that he's so fast when he wants to be, I've worried that he'll hit the grass and bolt!