check ebaymotors.com. search for gs500. there are usually always clutch and brake levers there. last time i looked there were i think 4 sets. some carbon fiber, some regular ol metal
I don't think you'll find a lever on Ebay, or anywhere else for that matter, that has a different shape. They are all stock replicas. And the carbon fiber levers on Ebay aren't real carbon fiber...it should say "carbon fiber look".
I suggest finding another lever that has the shape you want and have it mated to a GS lever, just take it to a welder that does aluminium.
THe one's on ebay are the regular replacement levers. I am trying to find a different one that is straighter so I don't have to stretch my hand quite as far.
The female previous owner of my bike had a little 1/4 inch tab welded onto the inside of the front of the lever to stop the lever from stopping so far out. It's welded such that it stops against the clutch perch.