Alans Cv's are very very good. They have custom made cv's to suit high powered cars, good price and they know what they're doing.
Also, im a big fan of genuine, have a look here http://justjap.com/store/product.php?produ...at=0&page=1 genuine full shaft, at a bloody good price.
But if i was you, i would do whay N1GTR said. Give nissan a call, you may be pleasantly supprised.