On the Hunt, Parts that is,,,,,,,

Started a new project last month. Found a misguided soul on craigslist with a '76 Kz900Ltd disguised in gray primer. Now I am on the lookout for parts. So if anyone can part with 1 of these 3 items I would be grateful. 1. A left Oem style side cover. 2. a good 4-1 exhaust(not a mac) 3. a stock airbox.