Dan-

Appreciate your recommendation to do comps on Gunbroker, but don't feel qualified to grade/compare this shotgun vs what sold there.
Therefore hope for some general projections for values As-Is and Repaired, just a ballpark idea.
Nearby auction house does "Sportsmen Auctions" that appear to have mainly shotguns/rifles. Expect that shipping to Rock Island/etc isn't cheap.
UPS/Fedex has appropriate box/packaging? No concern safely shipping vintage shotguns undamaged to Rock Island/etc.?

Hoping to hear from classicgunstocks.com -their feedback may provide a good starting point to determine how to sell this shotgun.