This is the one http://www.ebay.com.au/itm/Nissan-R33-Skyline-Rear-Roof-Spoiler-Drift-Wing-Bobtail-Body-Kit-ECR33-RB25-/350974080474?pt=AU_Car_Parts_Accessories&hash=item51b7af75da
The fitment is ok. I painted it all up and stuff then sikaflexed it to the windscreen, Also taping it as tight as i could to ensure everywhere sikaflex was put was sealed and flush. I left it for about 5 hours with the tape on. It hasnt came off since. Being fibreglass it isnt the perfect measurements, but easy to work it.