In another life I lived to race pushbikes. It is not a solo operation. The driving all over the place and the mechanical issues and the basic logisitics require some minimal support.
So, to mirror Hardwaregrrl, beg, borrow, or steal a ride to the event or you will be miserable trying to ride home. FWIW, Harbor Freight has the hitch packer/moto-carrier on sale right now for $114.00.
This is actually the reason I recruited NCRacer to go with me. He's young, fast, and good with a wrench. He works for beer, and he can drive my truck. Aside from smelling like a goat, he's a good travel companion.