JDW,

By chance, that just happened to me, priced in the middle of your ranges. I showed the better half a unique piece at the Antique Arms Show last weekend. She said OK. It is enroute to Charlotte now. I am tracking it like my grandkids track Santa.
I am not telling yet. Our Carolina Vintager's monthly dinner is Thursday night. The shotgun will be here by then. I'll let them see it first and then post pics here.
It is really interesting and very rare. It a London SxS, 2 triggers, straight stock, and ejectors. It is also the only one I have ever seen in all the trips to the Vintage Cup, Southern SxS and UK. The uniqueness part will be a surprise.
The last time my wife said OK to a gun, it was when I placed an order with the Poli family for my 28/32/.410 BLE. She won't say OK if unless it meets her "cool gun" criteria.

Joe
(Photos on Friday)