For these bikes it's cheaper to just order OEM online than to get scratched used parts off Fleabay.
For example, a rear fender is $31, a front is $25, and a headlight fairing is $15.
http://www.yamahapartshouse.com/oemparts/a/yam/500461b7f8700209bc795501/fender
Side covers:
http://www.yamahapartshouse.com/oemparts/a/yam/500461b7f8700209bc795502/side-cover