250-500cc New conversion kits available?

So I have a friend that has a gasgas ec300 and he loves it. Its a 2000 model which he has now updated to 2012 by buying all the parts in one kit including airbox, subframe, plastics, lights etc. Ive converted my 98 125 to 05 plastics using used parts off ebay because they were easy to get hold of. I alson have a 2000 cr250 which I would like to convert to an 09 replica but cant find the parts to do so. Is there a kit available like the gasgas.

ps, I know it would be easier to buy an 09 but i bought the 250 for peanuts and fancy a longterm project.