one reason the Ebay car has against it is in California that 77 and 76's for that matter would also need to be smog checked and passed to be able to drive Cali roads, and that would be every 2 years
that eliminates even a decent car from most California enthusiast.
so if the buyer is from another state not requiring it to have smog equipment and be tested they are ok.
great colors and condition would rule supreme.
74-77 in very nice condition are the next affordable ones for many parts of the world and will continue to command good money.
there are interesting sleepers out there that are passed up summarily because its just a T or "its not even an S" its a lowly lil' 76 911 normal!
I have a 74 911 plain Jane however its in a rare color, has factory front and rear sway bars, aluminum trailing arms and lsd. If this was a 74 Carrera people would be all over it and would be fetching $45k plus. however my little gem was passed over twice in a row on Ebay for $13k with no takers. I saw beyond the stigma and gambled not knowing it was so well equipped, was a 2 owner well maintained car with 100k orig miles that was traded in after 5 years in storage.
there is a nice lo mile 74 911 normal over on Ebay that just ended with bids to $22k with a reserve of $28K as an example. If your 76 whether normal or an S is in like condition you can gauge value based on current trend. Another 74 Targa at a prominent dealer is going for $38K so midyears are already in appreciation even if some are at the extremes just goes to show that a below average mid year needing to be put back in circulation (restoration) would be valued at min $10k or more.
POS exempt.