They are fairly easy to keep, but if you are doing this for conservation you might want to pick something else. The 2 you named are some of the most commonly kept hots out there. You can't go to a venomous show without seeing hundreds. Just look at the classifieds, they are everywhere. There are plenty of snakes that you could do more good by breeding (and not all are hot). I don't know about NY but i bought my gabby and rhino at the SC show. About $80 each.