I've managed to find one that I can get from Germany at a bargain price not genuine but going to give it a shot! Thanks for all the help though!
Top chaps
http://www.absdynamics.com/350z/03-and-up-nissan-350z-rear-bumper-nismo-v-3-rs-style_RBP-350Z-RS_1722.php
Found this one now.. Gonna email them a postage price aswell as the other site want $650 postage ontop of the $1000 to buy it /: