has any one bought from them before, they have a engine tranny combo that looks good but idk if i should make this move its alot of money on the line to just buy a crapper. also since its imported from japan it will come with harness all the way to the ecu. Will i have to get a new harness or can use the jdm one????? im thinking since its jap it will go to the other side?? the package is posted on ebay with 2 days left so im trying to figure out what i should do asap, i need my z back!