have you tried
http://www.everythingnissan.com/
http://www.amayama.com/
http://www.fromjapan.co.jp/
http://www.jp-carparts.com/
I've had good luck with amayama to get some of the hoses under the intake manifold.
I used the VIN/frame numbers below for some of my searches.
ecr33-002348 bgkbrtar33vzaa----