For heat I'm thinking of doing something like floor heat for the whole tank that runs thro the foam walls I'll be putting in.

Cooling will be 2 fans in the top and one installed in the back wall...? Maybe.

Both will be set on a temp controller.

For humidity I'll have a DIY auto mister.

Background will be spray foamed in.
Want 4 to 6 inches of dirt for plant growth.
Gonna do a DIY little pool for water with gravity drain for ease of cleaning.
If any other ideas come up I'll post and hope get some advice thanks