Haha, no, not quite. Sorry, that was a bit unclear.
I have a year old RTB in a 20g long with a heat lamp, UTH, hide (which he uses sometimes), and thick climbing branches. He sits on top of the branches that are horizontal beneath the lamp, and will often eat from there.
My Dumeril's Boa female is going to be put into a 4x2x1 within the month.
I plan on using the same cage for my male carpet (with added height) and my male RTB as an adult. I'm also getting a female macklotts and fully grown male RTB and will likely be using that size cage exclusively.
I'm a member there, and the kitty litter idea is a good one, but often they don't fit properly in some of the cages, and I know some RTBs (the male I'm getting in July to be exact) that is too tall to fit into a kitty litter pan that fits into the cage. I might mess around with it if he seems stressed without one, but if he's alright I'll just provide lots of aspen for burrowing.
RTB forums are a good resource for information. A lot of guys on there use cat litter pans for hides. I suggest the OP should check them out. They have many ideas for large hides, cage requirements and all that.