I like to buy used guns and fix them up myself and I also enjoy building them. I have an offer to buy a 1300 12 ga receiver and an 1100 20 ga receiver for 50 dollars a piece. I figure with shipping and transfer fees it will be about 220 dollars. Would it be worth buying these receivers and building them up? I figure it might save me some money and I would enjoy it a lot. Both receivers are in good condition.