One suggestion, especially if you are considering displaying the bike without the cowling is to cut off the "nub" that the nose fits onto. It looks awful and is not there on the real bike. Just a thought. (I had the same problem on my bikes, so I thought I'd share.)
Great job! Love it! Haven't done an NSR500 yet but just finished my first 500 (Tech 3 Yamaha). Interesting compared to the 800cc bikes, especially the exhausts.
Congrats!