Borderline: Stock 1985 Yamaha RZ500 in Canada

RZ500 models from Yamaha are a continual RSBFS fan favorite, and here is an interesting one. Purported to be stock with the usual wear and tear, this one has 20k+ miles, with an engine rebuild fewer than 500 miles ago. The seller doesn’t state how comprehensive the rebuild was (top end only? rings? overbore?), but…