Will body parts from a 78 sr fit my 79?

This is sort of a spin off from the "flamed tank" post. I'm thinking I'd like a second set of "skins".It would be cool to have a second set to change it to. My stock stuff could be like Clark Kent..then I could switch to my Superman set. Tank, side covers and front fender are the painted parts on mine. Will the parts off a 78 650 SR fit and how do I find out about parts/model year interchangeability? That's not a real word is it? Did I just make that up? Sounds like a real word though...It IS. Isn't dictionary.com a wonderful thing? Sometimes...well OK MOST of the time the stuff that kind of rolls off my tongue is well,you know, BS!!!!! Open mouth , insert foot.

in·ter·change·a·ble
That can be interchanged: interchangeable items of clothing; interchangeable automotive parts.

interchangeability

n : the quality of being capable of exchange or interchange: :woohoo:

I know the KZ's you can use any year I think the SR's are interchangeable.

Yes, I have a 78 rider and a 79 for parts no problem the only difference I can find is on my title one says 78 the other says 79