I agree with you skierkaj....dash looks like repro. I believe you can call GM of canada and get documentation on the car. Alot of Canada cars with no US Build sheets lately.
http://cdnclassics.chevelles.net/cccbform.htm
I would also make sure what the seller is claiming.
such as: This is the original block with vin code stamped on it? Those are the original heads, intake, carb, factory dash, etc.
3.31's with a 4spd? how many people ordered that combo?
"Take a look at the rear stripes,it is hard to tell by the picture,but they look too close together"
I agree