No need to apologize,Bullitt.I might have come on a bit strong... I had a suspicion I knew this car,so I talked to one of my best friends who knows the car better than I do.From the contact email name given in his add,it matches the owners name of a 69 Z/28 he knows well.A friend of his family purchased the car in 70 or 71,and raced it,possibly in stock(along with my friends father,who ran a matching Z/28)He thinks Paul,the family friend,sold it to the present owner.It has never left the Grand Rapids area. For whatever reason,it was backhalved at some point. I could not open the pictures in the add but the last time time I saw the car,I think it had Crager SST's on it.
I also respectfully disagree with the feeling that once an car is modified,it loses it's original identity.If true, there are more than a few Z/28's,Copo's etc.,that were restored from race cars that are worthless,lol! Take care.