I lied! Well, brain farted on the name and year. It's actually a '71 Sierra Grande.
Here's a few quick pics I snapped of it (Only had a minute and a phone camera, but they'll give you a pretty good idea):
Rust on the rockers: (Only real rust I could find, frame and mounts all looked pretty clean, at least for a Canadian truck)
Corrosion on the grille:
Took a picture of the interior, but it didn't turn out. But its in great shape-to be honest, aside from the ripped vinyl on the seats (And it sounds like the owner would be willing to throw in reupholster with the price, although if I bought it I'd probably change the interior colour, since I'm not a big fan of the blue)
Overall, it looks like its been treated fairly well. Frame and interior are, honestly, nicer than than my '00 TJ (Which, to be fair, hasn't exactly led a pampered life). The only glaring bits was a coolant jug being used as the overflow (He has the jug, but just hasn't reinstalled it).