What type of Snake do you think I should get?

[i pee in the sea]

That is where the difficulties lie exactly: in meeting their conditions.

And I strongly advocate against handling a GTP at a young age, because of spinal injury.

I'll be going with a PVCX cage 3x2x2 or 2x2x2 with a pro products heat panel and a mist king mister. I'm also heavily considering one of these to keep everything in check
http://www.digitalaquatics.com/news/announcingHK1

As for handling, I know it's advised not to handle them until they're yearlings, but would it still be harmful if you let the snake come to you from the perch to your hand?

By the way, you have some gorgeous GTPs Miguel