Borneos can still get big. I've seen a few that were bigger than some adult red bloods, so space will still be an issue. I personally don't have borneos, but I have bloods and sumatran short tails (black bloods) and one baby that is probably a borneo x black. The reds were nippy as hatchlings but grew out of it, the others were fine. They love to eat, and should readily eat f/t.

There are a few breeders online who may have some available. Kara from NERD has blacks and reds, but I'm not sure if she has borneos. There are a number of smaller breeders who do, but I can't think of their names off the top of my head. Price can vary quite a bit depending on color and who you're buying from. A normal CBB baby would maybe be 100-200.