I agree, there are a lot of people that would trade your flintlock, for a percussion, considering that they would be equal in condition. Or might trade out a barrel and lock, also considering that they would be equal in condition. I don't think it would be that difficult to convert. The touch hole is 1/4-28 now, and this would have to be drilled and tapped for a drum. I believe the drum could be milled across the bottom to fit a percussion lock. In the end, it would be easier, to work out a trade. I think T/C had a Hawken that could be switched from flintlock to percussion, but I'm not sure. Maybe someone else knows.