Dealer Location--Is it only on a "need to know" basis?

Friends,
I am new to the board. We have been looking at the possibility of a new Trailmanor, but have run into some significant obstacles in terms of locating dealers.
1) I have emailed the only dealer in our state twice over the past few months, attempting to connect so we can talk seriously about a sale, but he never responded on either occasion.
2) In attempting to find other dealers (we are going on two long, intra-state camping trips this year and would have plenty of opportunity to stop in at various dealers around the country) for some reason the Trailmanor site limits your search to one dealer, for which you must have a zip code. This is pretty frustrating...and seems unusual for the quality of everything else on Trailmanor's site. The HiLo website (the competition which we might also consider) for example gives a national map showing locations of every dealer in the country, so that I can pick out any dealer close to my travels to stop in.
My question: does anyone know of a place where I can get a list of several dealers at least around our state of Minnesota, particularly in light of the fact that our state dealer doesn't appear to be interested in responding? Thanks!