Well, the obvious solution is less obvious when comparables aren't obvious either.
There's a lot of difference between a leggy rebuilt one and a lowish-mileage completely factory one. Especially as late pre-bubbles hardly sold at all.
The only solution is a mid-term adjustment when one eventually pops up on PH or wherever and a long debate...
Nick
“I find myself irresistibly attracted to cars that nobody else buys. The NSX is a classic of the genre because nobody buys it and yet it’s a fantastic car. It’s got a wonderful compactness and simplicity and unpretentiousness to it. Honda rudely continues to make them whether we like it or not, even though there can be no commercial logic in doing so — I thoroughly admire that.” Rowan Atkinson