Quick housing question?

So I know that a lot of times for adult balls people use 41q sterilite, or equivalent. But I'm wondering if I can use a 60q instead just so he has more room to stretch out if wanted. Or would this make it harder to maintain heat and humidity?

Also, would having two tubs set-up be a good idea for when I have to clean out every month or as needed. Maybe just a second tub to keep him in while I do it?

Definitely you can use larger, I know people who use 4 and even 5 foot tubs for their ball pythons. Just as long as it's a plastic tub, it maintains heat and humidity well.

Actually while I clean, I just put them in an empty 15qt or any tub I have available. They can chill in there for even up to a couple hours if needed, for whenever you finish cleaning. No need for a whole other setup.