There's the 'Fuzzyone' mod for the standard mirror setup which works very well, I've done it to my previous and current Gen1.http://www.yamahafz1oa.com/fuzzyonesstockmirrormod.shtml
I had the same issue , I went and got a set of mirrors off a fz1n and a Yamaha clutch perch with the threaded collar off flea bay and removed the standard mirrors and blanked off with some dome head bolts ,happy days