Ok tried using the key word look-up and didn't find all the answers I was looking for.
1. is the mounting of the front fascia different between 82-84 and 85-92?
2. what is the differences between the Sport coupe, RS, Berlinetta, IROC and Z28 fascia?
3. what is the difference between grille styles on all the types and can you mix and match?
Basically these question are being asked because I found a salvage yard that has a few bumpers and I need to know how to identify each type for when I go to purchase one. and is $75-100 a good price for a used one?

 

click home above, then look at the camaro pictures on the left bar for the different years

 

I don't want to sound rude or anything but that didn't really help in letting me know the differences I need to know if there is a difference in how they mounted? and which ones are on what types of cars? I looked at the pictures and didn't see any difference between a 84 camaro front fascia and a 87