What, Pedersen rifles or warbird restorers? You would find incredible how little original equipment is part of some flying aircraft. We were doing brand new factory interchangible fuselages for P40s. 100% new. Including engine mount forgings. New stringer extrusions. Canopy rail extrusions. Tail gear attach brackets. Castings, everything!
Had started on brand new wings, but the workload bacame too much- this wasn't my primary job, and I had aging parents.
How small is that market?!!!