That is correct. The D-80 spoiler option was no longer standard equipment with the Z28 package starting in 72.
I also looked at this auction, and the car appears to be a solid starter project. I do think that a starting bid of $15k is a bit on the high side for a car that needs a complete resto. Even though I have a 72Z, I must admit that they haven't yet reached the price levels of the 70's & 71's.....
