I personally would add up the value of parts used, deduct at least 10% because they're used, then deduct another 10% because someone I don't trust put it together.
I think you'd lose money on every rifle, but maybe you could make it up in volume.
Welcome. I've been taking or trying to take my wife to the range in Porterdale to get her more comfortable with guns. You would be welcome to join us. Maybe it would help the wife to have another woman around, and you would be welcome to shoot anything I bring.
What really pisses me off is seeing assholes trying to sell Ford Model T's for 20k. Those things retailed for like 300 bucks! What idiot would pay these prices?