I *think* that I saw an article of someone who did mod-up an early 2000 Triumph 900 Triple like this, but despite their efforts the engine just didn't look right - have to look for it..
A good friend of mine had a purple and white Trident with the "ray gun" style silencers. He tried to sell it to me but I ended up buying a Yamaha at the bike shop where he worked. My Yamaha was much more easy to start, but it could never sound as cool as that Trident did!