Thanks to knowledgeable people here I am able to tranport my bike and the wife's trike when we leave for Florida on Friday.
My first concern was getting a front receiver hitch so I could launch a boat and keep my rear wheels dry and maybe use it for my spare but I have the spare on the back receiver and have a ball to tow the boat (that I have not bought yet but hope to find a Gheenoe while in Florida the next 3 months).
So I followed everyones advice and got the front receiver installed and then I bought the recommended 4 place rack by Allen for a 2" receiver and the Allen cross bar adaptor. Voila! I am ready to go.
Here is the trike in question:
My front receiver hitch:
Spare tire mounted in the rear receiver:
and the two bikes-my conventional and my wife's trike:
and the Allen 2" receiver rack that does not wobble:
The help on this forum made it all possible