I am not looking at a permanent mount to the trailer. I think a mast would be okay, clamped to a light stand. I have heard of ham sticks that allow some options for different frequencies. I would like something that works from 20 through 80 meters. If I could go longer, hey great, but I understand the limitations trying to get to 160 meters in a portable set up.
At home, I have space for long dipole or possible vertical 1/4 wave. Makes me dizzy sometimes looking at all the options and coming to a decision.