Welcome to QUADCRAZY! I'm not sure what the dealers charge around you, but they can range from $30 - $70 an hour. They may have a package price. I would see how much it is to get an estimate maybe.
Check out some of the sites like bike bandit, motosport, dennis kirk, etc and see if anyone is running some clearance tires in your size you can pick up.
* Added issue to thread title.