I think somewhere in the world there is a person willing to pay premium jack for that seat.. even with no upolstery.. but it would be worth far more money, to far more people, if it were in good condition.
My guess is anyone willing to pay real money for it would be folks who were doing a 100 point original resto on their trucks, and needed that seat to be "period and model correct".
If you wanna sell it, stick it on eBay and see what happens.. or check eBay from time to time to see if simular seats pop up and see what they sell for.
