Ok...Heres the plan. I've changed the setup a bit by selecting new branches which should help him up (Ill post pics later). I've seen videos of bp climbing so its not ruled out.
I'll buy a BP and watch him carefully for a few days to make sure everything's safe. If all fails, I will go to my backup plan and cut the cave in half which should be more than low enough so that no injuries happen.
To rabernet:
Theres no difference between 2nd and ground level heating, its all the same.
But Ill have to do some testing and see if the inside gets hot enough on its own. I plan on using mulch all on the walls as well. If that doesnt get the temps up, then a simple Heating Pad or hot wire(not sure what its called) should do the trick
To bones93
My buddy's python is full grown and seems pretty healthy to me. Its fed a decent sized live rat, according to him, every three weeks. And I've read that BP should be fed bi-weekly(Which is what I plan to do)...not weekly. And besides, if they can go on for months without feeding, shouldn't they be fine with eating every three weeks? Just a thought.
Thanks for all the help!