I'll jump in - keep in mind I am a cheap bastard
First: 1990? Sorry, doesn't scream "vintage" to me.
Second: Prototype? FEH! Can you say "experiment"? If it had been that nice they would have built a few of them.
Third: Gold! I would ( forgive me ) rather have black - gold just ain't my thing!
Forth: $8500.00!! Please
The pluses: Blocks and binding -
maybe korina- have to hear it first.
This is built in the exact specs as the current model - the custom shop would probably build you a new one, with chrome no less, for a lot less.