Not everyone is going to have most of the stuff conveniently packaged for you. Unless you just so happen to come across a part out thread that just so happens to have what you need, you will have to deal with some seller fragmentation
I have a Z32 MAF if you are interested. Pigtail can be bought brand new from various retailers (frsport,etc.). I would trust that over any used pigtail. Plus, they (usually) come with a good 12" of wiring.
http://zilvia.net/f/showthread.php?t=560371