I've owned one of these sleds, same as yours except mine was a special edition "millenium sled"..I sold mine last winter for 2000, which was pretty low considering the majority of them were going for about 2500-2700 at the time. I think a good price would be around 2000-2300 for a really nice one.
That was the best snowmobile I have ever owned, I sold it with almost 7000 miles on it, and it never went as far as fouling a spark plug..NEVER. The engine is rock-solid, they ride pretty well too (not as good as a rev) but it was just a good all around solid snowmobile, I highly recomend looking at if you are serious about buying it. Hope this helps, enjoy the winter!
I don't use carbides on my ski's....they never touch the ground anyway!