I'm after the black rear fairing decal for a 2002.. The one that says gs500.. Anyone have a source?, ideally in Europe.

Suzuki shop?

Probably easier and cheaper to find and buy a used fairing section 

Yeah that's an idea

Try these guys, the site is in czech but use google translate they do complete decal sets at a very reasonable price and cover most styles/colours used on GS500's. the price is shown in czech koruna which at moment is 29p to 1 koruna. And being in the EU there won't be any import duty, ands postage should be cheap.

http://www.motolepo.cz/1-motopolepy/16-suzuki/338-gs-500.html

If someone can find a good picture of the decal in the flat (not on a fender), my buddy can make one for really cheap. . . In the US, though. . .