Help with my first DIY? (Aquarium/vivarium combo)

[Sevvy]

Hello! I’m trying to plan an enclosure for when my baby jungle carpet python gets larger. I’d like to make it either 4 x 2 x 2 or 4 x 2 x 3 (depends on practicality). I’m also planning to build an aquarium for rainbowfish with a maintanence panel on top to be set underneath so I can have zoo-like a multi species Australian biotope thing going on. This will be both my first time doing any sort of DIY of this type and my first time working with wood, and I have a few questions:

-It needs to be moveable by two people without a lot of upper body strength. What’s the lightest snake-safe wood that’s strong enough to hold water? I’m thinking birch?

-Is there any way to make this set both waterproof and collapsible?

-Any tips on fitting in the aquarium lights? I was thinking of putting LEDs just above the maintanence panel, but I’m concerned about them being a burn hazard/hard to change/etc.

-Is there anything that might improve this design to make it more portable/easier to maintain?