Need some help before I find myself in one of those money-losing projects(again). Came upon a 1930 Win. Model 12 Standard Trap gun. Bluing is flaking most on left side of receiver, straight stock absolutely must be refinished and a pad (period?) installed. Barrel, too, has some minor pitting. Don't know what a 12-gauge trap gun is worth, so would you restore or dump it? And, the arm that pulls and pushes the bolt no longer works (maybe just too much crud).