I'm wont be buying it, So I really don't give a dam about value. My curiosity is primarily what is it, and is the seller statment true or misguided.
I just remembered these pics from one of my old computers. It was listed some years ago on ebay as a 84/85 ATK kitter for the XR500 mill. Sure they are both non linkage single rear shock, get past that, there is no similarity whatsoever between the geometry or fabrication style or the rear frame area or swingarm and Shocker attachment position.
Is there any out there who can put up a picture of a known ATK that looks the same in the rear arrangement like this instead? Even the front of the frame oil tank and exposed back bone area are different.
A massive difference even for the vision impaired, the difference is black & white, in & out, up or down and dead or alive.