Well, I wish the buyer well, and hope they know what they've gotten in to...
Might be a "fair" price at 35K, but don't forget the thousands and thousands of dollars worth of labor (even if its yours!). Nothing's free.
I've gotten to the point where I keep careful records of parts costs on my restorations, but never look at exact labor time. It will keep you awake at night... :-)
My current project is a '71 Mustang Mach 1... and it represents years of part time work... my parts estimate at the beginning was close, but my labor is running at about double what I thought.
If the buyer is a member of this forum, my offer to help stands...
KenP
1996 S500 Coupe