[Mike C]

You are correct with tire availability and the 18" rim. I would probably go that way if I was doing it again, but I'm not sure if I could have done it for as inexpensively as the 17's since they were just $140 per wheel.

I have not figured out my spare situation yet. I will probably do something if I ever get to do Power Tour, but I still have the 6 lug tire mount on my fender so I need to score a 5 lug. The 29" tire in the rear is pretty close to a 215 75 16 which is what I would try and find for the side where I could get the OEM hubcap but his is a fleet so less of a concern what the spare looks like.