Picking up the new nightrod this afternoon and I am already shopping my mods. One I want to do is add a fatter wheel on the back. I found places with "kits" ranging in price from $3-$4k. Other than what comes in the "kit" what else would I need in the way of mods to make this happen. I have seen some that say the cost is closer to $8-$9k for everything. Has any one who has done this give me a better estimate of actual cost?