The VIN's don't correspond to the serial number so now way to tell. This sounds like a PP or pre production car or maybe a media car if Ford sold it. Did you check our threads on this subject? @jmbboss302 might be able to help. Do you have any photos of the car? Specifically the Boss intake and where the dash plaque would be? Were they there and removed?
I have pics of intake no plaque for some reason they put new springs and sway bar on iTunes the trunk it has street and race settings for the shocks and struts it has sat outside a long time you can tell by the paint job
All Boss 302's came with adjustable shocks and struts. Do you have a photo of the dash where the serial number plate would go? What I'm trying to determine is if there was a plate and it was removed. Due to the production date I think this is a PP or MP car. Regardless if you like the car and it fits your budget go buy it.