+1 www.rinkya.com but they charge percentage of purchase. but they translate to english so you can find it easier. I used rinkya then went with Friend stationed in japan route. (you can't get anything over 80lbs. and I would limit it to things under 10lbs. just to keep your wallet from crying.
edit:
just for a quick reference a vlsd complete and hlsd (carrier, output shafts, cover, and internals is 83 lbs.) jeff240sx learned the hard way so we don't have to.