No debate, on the stock, the rest begs a few questions.
Given the features, have you arrived at a model year, or is there some cross-over of parts?
Any stampings near the breech of the barrel, on the underside of the lock, butt plate, or on any the barrel bands that you could share, with us, as well??
Always loved that George Washington let every man take his musket home, when they were released from service.