mate, I did a quick search on ebay USA and there are some listed.
I searched GS750 switches.

chris

Hi Chris, I found the ones on the US site but cant determine if they are the earlier GS750 alloy housings or later plastic ones. I am not sure what year they changed to plastic, and so far I have not had a single reply from any US seller about this :( I previously bought a '78 GS750 parts bike and it had the plastic control switches.