Your going to get a lot of wide variances in your appraisal unless we know what attachments or accessories you have to include with it. Along with condition, miles, hours and modifications. If it's in great condition, I would say closer to $3500 at most. In fair condition, closer to $2500-$3500. Then poor condition, lower than $2k.
Don't know if your planning to sell it or not, but be sure to tune it and clean it up good, this is another time to sell, since hunting season is getting closer.