Why thanks. We love them too. Kings are great to have. Very fast ,active and deliberate snakes. Very exciting to keep. I keep mine in a critter keeper with no issues at all. Also a gopher ,bull or pine snake are a blast. They have a few display behaviors that make them one of my favorites. They hiss and rattle their tails but seldom strike and usually calm right down when handling. Actually there are tons of colubrids you could put in there. Find one you like the loon of that fits your desired size range. They will thrive in the glass tank.
Google images for kings. I think they have the most choices for colour and paterns. Start there

My Albino Applegate Gopher Skittles