1)
www.rinkya.com will bid for you on japanese auctions and arrange shipping. For a price, of course. I have a lightweight flywheel coming through them. $190 + shipping isn't too bad.
2)
http://www.ocn.ne.jp/translation/
Input the url into the box, pick the second option and hit the big button. Its the clearest translations I've seen so far. As for that auction, its kind of difficult to tell. I think they're offering a complete installed swap to an RB20DET/SR/CA for anyone with an RB25DE?
3) That JDM-2200 adds mad horsepowa! Everyone knows that JDM map lights do more than a 50 shot of NAWS.