I would look for a hitch that is easy to remove or will leave your truck bed free when not using the hitch.
I use the landing legs of my 5er as a hoist to lift the hitch out of the bed. That is an easy, for me, way to remove the hitch but it leaves the rails in place. I do not haul gravel or dirt in the truck so the rails are not a problem for me, but could be for some.
A turn over ball gooseneck hitch would be another good option.
Since you will not be full timing I would try to keep the cost down and look for a used hitch. Any hitch will do the job and if all the parts are there a used hitch will work just as well as a new one.
If in the future you decide you like some other hitch you can always sell the one and buy the other.
