If anyone followed the link to the Tiffin Forum, I added a NanoStation and Wireles router inside the coach for less than $70. It brought an unusable park WiFi signal (-99dB) to an excellent connection (-40dB) and it is just sitting up inside the cap of my coach as that was the right direction the antenna needed to be pointed. There is also a window mount available should I need that at our next location. Setup is simple and takes about 10 minutes the first time and then about 2 minutes at each new location.
Between this and my new unlimited Verizon data I should be able to get a signal of some kind no matter where I go (I don't go into the "bush").