I bought this 77 new in 78 for $1200, a "friend" wrecked it, and I updated it when I put it back together, I wouldn't mind having it back but I weigh probably 50lbs. more now, and weight made a huge difference in performance on these bikes.
$21 large is an obscene amount to pay for a 79, I dont care if it's original and still in the crate!