I don't own any Durangos, but I do have Calis and can offer advice if their care is similar.
They're hardy like corns and can do well in glass tanks, but I keep mine in tubs. I have some three couple month old babies in 6 qts, a subadult in 28qt, and plan on 41 qts for adults. They seem to prefer cooler temps but I still give them a hotspot. I don't need to mist when they're in shed but if your will be in a tank see how the first shed goes and see if you'll need to mist. I give two hides as well. Kings seem to enjoy aspen over other substrate (so they can burrow) but mine still burrow under their paper towels. Kings/corns poo and pee A LOT so it's easier (and more sanitary for me IMO) to just clean out all the paper towels with fresh ones than try to spot clean aspen.
They will musk but it depends on the snake: my two baby females do it every time they're out while the new baby male I got hardly does it. My subadult male is really good about not doing it too. It's not a big deal and the smell isn't that bad IMO. Kings usually have very good feeding responses so feeding shouldn't be an issue, all mine are on F/T.