I like the idea of pulled meat nachos, not sure how you could do pork, if another vendor has that right. But, I do like the idea in concept. I would consider things on sticks, more likely I would offer beef and chicken on sticks, maybe wrapped in bread or something. We always did great with meat on a stick. I think it is something folks equate with fair or festival food.
I like turkey legs as an idea as well. It seems lots of folks like those, plus, it gets the non-pork crowd. Another option, and one I constantly play with for vending, should I ever get back into that sort of thing, is pulled beef for sliders and tacos. It would be easy to do a load of pulled beef, and have a few condiments and the bread and tortillas to sell both with a minimal of ingredients.