A lot of good videos out there on youtube on how to carve up your own roasts and steaks from any form of a carcass. Looks pretty easy, just messy and time consuming, if I could only connect with an elk some day. Having the work space seems to be the most limiting factor, besides, it seems like a skill that everyone should try to tackle at least once in their life. I believe there are regulations on people that receive payment to process meat in that they need to be USDA inspected and so on so I don't see those people doing it outside of their workplace, could be wrong... However, I could see a large market/audience for selling the service as an educational experience where you instruct someone else on how to butcher their own meat, that could be a good side hustle in the off season.