i wouldnt get oe reeds, go for the v force, around $130. or just upgrade with some carbon fiber reeds for the stock cage.

http://www.ebay.com/sch/i.html?_trksid=p2050601.m570.l1313.TR0.TRC0.Xlt500+reeds&_nkw=lt500+reeds&_sacat=0&_from=R40

and the fuel cell on that carb look small, i hope it does not run out of fuel when your on a long pull. but it looks pretty nice.
good luck with it, and i hope it works good for you.

Yea, I know it's taking a chance on something new. Worst case is it doesn't work as I hope and we end up putting it on my TRX250R. As for the V-Force 3's, I notice that most of them say 88-90. Is there a reason the 87 is left out of that range? Do I need an 87 specific set and what's the difference?