Might cost $20,000 to make that gun worth $20,000.00. Talk about being used hard and put up wet. Figure 1,000-1,500.00 for a blank, $3,000-4,000 to restock. How many hours metal work at 75-100 per hour? 50-150. Rough guess some where in the middle. Pick up the engraving and gold work another few grand. Then you get to the barrels. If they are in decent shape I would have them lined by Teagle, refinished and proofed. Figure six months and maybe $4-4,5000 investment. The last thing on Earth that gun needs is to be sleeved.
Yep, you could go through $20,000.00 real fast on that gun. What a shame. A mint condition, Lefever in this grade, would be worth more than $20,000.00 but would a restored one be worth the investment?