Even if that is the original fork, $800 is pie in the sky pricing. Price it that far above value and people assume you're so unreasonable that you can't be bargained with. It's wearing Campy Triomphe or Victory, neither of which has the market draw that SR or NR has, and results in lower pricing. Also, the frame is likely Cromor or Aelle tubing, which also does not bring large dollars.
Thats all assuming the fork is original, which I'd be doubtful of.
Original fork, I'd estimate around $400-450. Replacement fork, Id go $325 ish. Frankly, sell the group off, and then ditch the frame for whatever you can get.
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My bikes: '81 Trek 957, '83 Trek 720, '85 Trek 500, '85 Trek 770, '81 Merckx, '85 Centurion Cinelli, '85 Raleigh Portage, '92 RB-2, '09 Bianchi