I bought a hayabusa fender eliminator kit off of ebay, it has the proper bend to clear the rear wheel. My first kit was an R6 elimnator that didn't have enough clearance....(or bend).
I paid around $20-25$ for each kit.
I ended up using turn signals from dime city cafe that were cast aluminum and looked good, were cheap and tidy'd up the appearance of the bike. Go search around their site for a set of signals you like.