for my '79 PE (suzuki yellow) I have cleaned up the originals, sourced NOS, and fibreglass, and also a pair from DC plastics.
The DC fenders appear to be absolutely first-class plastics, with great finish. HOWEVER, the colour is not Suzuki yellow. Too safety-yellow - sock-in-eye-too-bright. Apparently the sheet plastic they use cannot be got in the precisely right shade. For a non-resto racer, absolutely great. For an as-new restoration, not really going to feel 'right'.
The fibreglass stuff I got from a local - Scott Bennett's "Prix-Historic Fibreglass" up in norther NSW.
I think it's Tenterfield. (eBay seller "Classic_cyberglass" or email
[email protected]). Good quality, looks fine and good colour. Not bad at all - if you're ok with having fibreglass guards, side-covers and number-plate, then definately worth thinking about.
Now as to Yamaha white and DC... don't know. Sorry.
Luke