I wouldn't worry too much about this rifle being devalued because it is not 'as issued' by the factory. There are collectors of rifles that have been altered by the 'Wildcatters' of the middle decades of the 20th C.
These wildcatters often did their own gunsmithing and such rifles are rare and have as good a value if not a higher value than the factory issued model.
If you don't believe me try and buy a Zischang Borchardt for the same price as a standard Sharps factory model. August O. Zischang produced some really oddball calibres for Scheutzen work.
Any rifle altered to a wildcat calibre by some of the 'great cartridge experimenters' of the 1920's to 1960's , will have condiderable value. It may be harder to sell it, and you are going to have to advertise it on a lot of Forums. But, if you can find the right buyer you'll probably get a higher price than the rifle in it's original factory form would have brought. Good Luck
Harry
Last edited by Harry Eales; 04/01/09 01:01 PM.