I am thinking about building a small trailer that is low to the ground so my dad doesnt have to load his mower into the back of his truck. He is 73 years old and I dont like the idea of him driving up ramps. If I build it small enough does it need to be titled and tagged? I cant find anything on the NCDMV site. He said he would love to have a small trailer as long as he doesnt have to deal with the headache of renewing the tag every year.