I am trying to price a 4 inch 4 screw Pre 29. about 99% cond. barely discernable cylinder turn line. But incorrect stocks, no box or tools. Its my best friends gun who passed away and want to buy this from his widow. I'm thinking of $2500 -$2700 range as the "book" says subtract $500 for missing grips and $500 for no box. Gun does have some nice roper grips but I'll sell those and buy the coke bottles off of EBay. What do you guys think