Here's the ad on CL. Willing to discount to member here. If $175 is more than you think it's worth, make me an offer. Can send more pics if you want.

VTX 1800 Mustang seat - motorcycle parts - by owner - vehicle...
Solo driver seat from VTX1800S. Seat has a small crack at right upper rear, otherwise very good condition, no studs or conchos missing or loose.
portland.craigslist.org