[CarmichaelPatriot]

May I suggest that you auction them right here on FR?

Bad idea, unless you want to be meeting Mr. Holders friends from the ATF, or the seller has an FFL. Yes, I know individuals may sell firearms privately, but selling more than one or two at a time starts getting towards the "dealer" line...

[NorthMountain]

but selling more than one or two at a time starts getting towards the "dealer" line...

Have a dealer manage it as a consignment sale. If the buyer is not in California, it will require and FFL at each end anyway.