Isn't the 240z is worth more now than when it was new since they are so desirable for restoration and racing? Don't you have one or two around the house?
A "supposed" Bob Sharp 240Z race car sold last year for $77,000.
I say "supposed" because some of the pictures show what I feel is a later 78 or so 280Z chassis. Also the info about the history of the car indicate that it was created as a replica of an IMSA GTU race car by a previous owner, and originally painted in Dad's Rootbeer livery.