Thanks so much. The dogs getting to the snake should not be a problem. The rack with be up off the ground and away from them. Both dogs are kept in closed door pens (like these) when I'm out or asleep. They're really only in the room during those times, as it's more dedicated to storage and being a dog bedroom.
My main concern is having the snake be stressed, knowing and sensing a predator is in the room with him for hours at a time during the night. They can be very loud at times.