So many dealers so few units midwest

Began researching alternatives to a popup not wanting canvas bunks I found the Fleetwood outback but have 2008 chev trailblazer and read info from folks that trailblazer may not be sufficient to tow possible stress on transmission. I started looking at Trail manor units and researching shows me thre are many supposed dealers but very few units in the Midwest. Not wanting to spend thousands to get a new tow vehicle surprised of so few in Midwest vs other parts of the country.