I have the one that attaches to the batwing crankup.I bought it because at my mother inlaws house in South Carolina I could only get two stations and I had to move the antenna to do that. With the Jack I could Get twelve station.
How far down I55 are you going. There ar a few RV park down by Sikeston Mo. There is also a fun place to eat(Lamerts resterant the home on the throwed rolls)
I have pulled my demco tow dolly for 10 years now and I have found that it is best to let the tires rest on the rear stops and leave the trans in nuetral. After tightening the straps put the trans in park. I no longer have to retighten the straps.