Jason
If you haven't found a box yet, there is an old one at Bob's Shooting range Salisbury Ma. Hardwood box, no scope or mount, and the back is dry split. It could be repaired and modified at same time to have rear entry door. $50. Call them and make a lower offer on it, I'd go $35 it myself. Been sitting there about 6 months. Maybe they will take some pics to email you before taking the ride.
Jim