a little musk isn't going to hurt. my experience with kings/milks is that they outgrow musking. However, I've had only a single mbk, a hatchling I picked up last year, and she still gives me the musk treatment every time. I expect she'll outgrow it soon. if the snake your looking at is a hatchling, it can be kept in pretty small quarters as it probably only weighs about 30 grams at most. a six qt tub will do nicely for now. I encourage you to get the snake if healthy. I got away from colubrids a few years back but I always missed them. I started rebuilding the collection last year and now have the 0.1 mbk (yes, there will be a male soon!) and 2.2 hondurans (1 yearling and 3 hatchlings). They are rewarding snakes to keep and I am happy to have them in my collection again.