R32 gtrs are quite easy to get and cheap, I say look at getting one already in the country, myself and two of my mates purchased gtrs, one from prestige and that was a shit box, very very rusty, and I bought mine through imports101 which arrived in the country with number 6 piston with a hole in it, nice and blown and either of us have recieved any compensation or even help.
So i cant stress enough of how important it is to test drive a high performance car before you spend the money.
The risk is far to high to send your money to japan..
anyway good luck with the search.