Ebay! Punch in Ebay Motors, Yamaha TW 200, parts and accessories and then check the used box. Everything you need is at your finger tips and for a price.
If/when you hang out here long enough and get friendly with some of us you might find some better responses to your needs. When the regulars here look down and see this is your #2 post on the forum I just have to assume it does not generate much interest. There is a bunch of us here who trade parts, stories, experiences and knowledge and even slap each other around all the time and new comers are welcome to join the club. Hope you got my point!