I wasn't trying to 'compare' it to a new vehicle, just trying to logically arrive at a current 'value'. Most would agree $20K is too much and certainly $25K. But if it really struck a certain buyer's fancy, I don't believe $20K to $25K would be out of the question.
Even so, I think you agree it is worth more than the $10K 'book' price.
One point I was asking was how to finance and insure such a purchase, even if you bought it at $17K. If the loan value and insurance is based on average retail value, what consideration is made for a non-typical vehicle as far as collateral and insured value. If I recall, when I bought my '93 back in 2000, my bank made it a personal loan instead of a car loan. I'd safely bet if I called today for a loan on a '98, it would be the same.