Hi guys thank you for the extremely valuable information provided, I managed to convince the owner that I am not at fault. He said that if I could get the spinner assembly for $350 like I said, I wouldnt have to pay anything...
so from the link SNS3gupy provided this is what I could find
Wag-Aero Online Store - Composite Spinner Only for Piper PA-28-140 FAA/PMA'd
that is only the spinner, do you know if the plate assmebly / bulkhead is provided too?
It is a PA 28-140