Scott --
As others have said, W. Va. law may (and probably does) vary from the law in other states.
So far as I know, you only need US DOT numbers if you're a commercial vehicle engaged in interstate commerce. The DOT considers pretty much anything to be commerce so you don't necessarily have to be paid.
You're not a commercial vehicle because you're not over 26000 lbs GVWR and you're not hauling passengers so I'm pretty sure you're good with no DOT number even if you do go out of state.
Just my $ 0.02
Pete P.
Harborcreek, Penna.
