Fabulous bike, in what looks like outstanding condition.
Tandems are a tough sell, but to the right, next caretaker, I would think, that $1,500-$2,500 would be fair market value.
Meaning, $1,500 would get it sold pretty quick, and $2,500 might take awhile.
It just depends on how fast you want to get rid of it.
I wish I was on the east coast, I’d be on my way over to pick it up right now.
Unfortunately, I’m on the west coast, and that bike looks like it would be a beast to ship.
Good luck with the sale.
It’s a fabulous bike that deserves to be united with a loving new owner.