In the 1990s I haggled over and bought broken guns at pawn shops, fixed them with parts from Numrich gun parts corp, and sold them on consignment at another pawn shop, all in an effort to school myself in gunsmithing.
I am still not a gunsmith, but I can fix some of the broken old 22 rifles that can be bought for cheap.
Over the last 10 years I have sporterized dozens of Mausers, but I have kept all of them.
I am still not a gunsmith, but I can do a lot of sporterizing work.