It extremely hard to set a price without more details and pictures but I'll throw out some numbers just for grins. Lets say the gun functions O.K. is worth 900 bucks "as is" with rusting and slightly pitted barrel. Another 800 bucks for a O.K. restoration and rebluing, and $200 to restore and refinish the grips. The refinished gun would look pretty good but far from perfect because of extensive polishing to rejuvenate the finish. It would not be "jaw dropping" beautiful, but it would be a nice gun to shoot and show off and would recoup that amount invested someday not too far away. A nice original RM for a little more money would be worth more money faster and would keep appreciating in value MUCH faster! If the gun was left "as is" it will still appreciate, and probably at a faster rate than the refinished gun.