Personally, I don't buy guns online without a return policy; it is the only way interstate buying/selling works and has long been the tradition. The seller assumes some risk, but not nearly what a buyer does with a no-retun policy.

Also, as a FFL holder I rarely take delivery from a private party because I can't return a gun to a non-FFL. Some say otherwise but that is how I read the regs. and how I run my business.

Have you considered Blackpowder Cartridge Rifle News (Cody, WY)? or Single Shot Exchange? The price probably needs ot come down regardless...
As I said, nice looking rifle but could benefit from a rear sight.
Best,
Steve