I think Evil Bay may be the solution....
Describe it as Rare Antique in a Scarce Chambering with Original Finish and you're good to go 😉.  David

No money to be made here so..... rebarrel it to 22 wcf have the receiver redone, buy some "nice wood". Then go out and buy a custom mold, a set of dies, and be sure to over pay for the brass. Lastly shoot it a few times, decide it's to small for long range, to expensive for prairie dogs and not really a schuetzen rifle. Put it in the safe and when conversation turns to #3's in 22 wcf say "I've got one of those if I remember correctly I bought it pretty cheap"
At least that's what I'd do

Nice to know I am not alone

Reline to .22 WCF, and shoot it.  I usually don’t bother with the outside finish, since any effort put into that will eventually result, with sufficient passage of time, in exactly the way it looks right now.  “Such outward things dwell not in my desires, but if it be a sin to covet cool shooters, I am the most offending soul alive.”  You can’t make it mint original ever again, so the best alternative is to have fun with it.

I take my corroded (but fixed-up, functional and safe) treasures to the range a lot.  It’s surprising how many times a younger shooter will leave his 21st Century Peabody Spoonbill Rifle (with camo-paint fully-adjustable stock, silencer, and AWACS sighting apparatus) on the bags and come over and say, “Wow, that’s Cool!  What is it?”

It called to you, and you responded.  Naturally, organically, and without any artificial ingredients and harsh chemicals.  No animals were harmed in the course of the transaction, and it’s now on the vendor who got the money to hire Minorities and save the Checkered Wombat.

Geez, if all you were interested in was accumulating and storage of degraded green paper coupons and base-metal stampings, you’d be on a Day Trader’s site, not one like this.