i just did the conversion...2-4 hours labor
conversion kit - $100 (ttr3830)
os.50sx-h hyper - $169 (sale price)
cy mp5 - $85 (hatori better, but more $$$)
good fuel tubing, header tank, loctite, tee-filter, remote plug clip, (did i forget anything?)
i got my conversion kit from
http://www.amainhobbies.com/ (they have everything you need)
-ken
raptor50v2
raptor30v2