Or a small enclosure less packed. I have never kept a snake in an enclosure that they couldn't properly thermoregulate in so that's a pretty poor
example...and as far as humidity goes...use a humid hide...and there's your microclimates.
I can appreciate where you're coming from, but can't even remotely agree that bigger is better becase of the behavioral nature of these animals. Birds are not snakes, and sometimes a snake is only in a tree to eat or find food...not because they enjoy being there or it enriches their lives somehow...they want a meal or they need to bask... You're still presenting to be a bit anthro in the opinions an ideas you have expressed here...and as FWK mentioned...a little carried away.