What part of Alberta are you in? I'm in Fort McMurray
BTW you signature says, camero, its camaro dude.
What wreckers are you calling? I'm trying to find a used trunk lid for my 89 240 coupe.
As far as the brakes go, I think you can safely get the 300zx calipers and they'll fit but don't take my word on it. For this information I wouldn't have listened to scrap yard staff for specifics about parts.
All the ones that I called didn't think the newer 91+ front end would fit on an 89/90.