I can't really picture your enclosure. You say it's "a glass home which has two plexi-glass openings and wire mesh in the middle", but I'm a bit confused as to what that means.

You don't have to have anything special to hold the tank up. I got 8 pieces of 2" tall, 1" diameter PCV pipes from my work and that's what I used to lift the tanks up for both of my snakes. I just put it underneath the glass in all of the corners and it works great.

If you have a UTH on one side of the tank that is controlled by a dimmer, rheostat or thermostat, you don't really need a lamp. Lamps suck a lot of the humidity out of the air. So honestly, unless it is totally necessary, don't bother with the lamps. If you got rid of the lamps, you probably wouldn't be having such a tough time with humidity. Having two hides will definitely benefit your snake. Like we say "a hiding ball python is a happy ball python". The hides don't have to be anything fancy or expensive. Maybe try to black out the back and sides of the enclosure to make him feel a little more secure as well.

Thanks for coming on here and trying to get advice on how to improve the care and happiness of your snake. Even if you aren't doing some things correctly now, you are certainly taking the right steps to making things better.