try proclass cycles in richmond, va, they are the only ones i know of... honda will most likely be discontinued, if not you'll end up paying more for a seat than you probably did the bike... ebay?, i looked in our catalogs this is what i found

CEET seat cover blue- $49.95
Maier plastics
front fender red or orange $44
rear fender $31 red or orange
side panels $55 red

and looks like they were only made 82-83 so you might want to verify the year although i doubt it matters for this stuff