Make the chicken - Season the chicken with salt and pepper and add to a hot frying pan with vegetable oil. Cook about 3-5 minutes per side to brown.
Reduce heat to low. Add the vinegar, cumin, paprika, bbq sauce, and water. Stir well and bring to a simmer. Cook about 15 minutes, flipping the chicken once in the middle. Add a little water if the sauce evaporates too much.
Remove from heat and pour the chicken and sauce into a bowl. Shred the chicken with forks and set aside.
Make the pasta salad - In a large bowl mix the pasta with the pico and sour cream. Taste and add salt/pepper as needed.
Make the nachos - Preheat broiler to high.
Put the chips on a 1/4 sheet pan. Top with half the cheese.
Top with about 1/2 cup of the chicken. (Save the rest and make a taco or something later) Add on the corn. Make sure the toppings are equally distributed among the chips.
Add the remaining cheese and broil for about 5 minutes until the cheese is melted and you start to see some browning.
Remove from heat and top evenly with about 1 cup of the pasta salad. Serve.