There is a guy selling the kits on ebay and I called him. He live within driving distance of me so I am considering driving down there and having him install. Will run me about $700 but as far as I can tell, this unit will integrate fine with the G35 or 370Z. He has done 10 GTR installs and seems to know what he is talking about.
Here is the ebay link:
Nissan GTR GT-R R35 Rear View Camera Kit 370Z:eBay Motors (item 220430103817 end time Jun-17-09 10:58:41 PDT)
Thoughts?