Zest your 2 limes, juice them in a little bowl and reserve
For the slaw, combine the cabbage, cilantro, onion,~1/3 lime juice plus 1tsp olive oil. Do a taste test and adjust with salt and pepper as needed ( should need it). If you want add some avocado cubes to it. Reserve1 hour in the fridge
For the sauce, combine the sour cream, mayonnaise, onion powder, ~1/3 lime juice and chipotle sauce. Adjust as needed with salt(should be ok). If you want more kick, add cayenne pepper.
Peel your shrimp and put them on a paper towel to dry them a bit. Put them in a mixing bowl along with the remaining lime juice, minced garlic, half of the lime zest,1tsp olive oil and a dash of salt. Cover and put in the fridge 20 minutes.
Heat a pan over medium-high, add some oil and cook the shrimps for about 90 seconds on each side. Take off from the heat.
Dress your taco/tortilla starting with the slaw at the bottom, the shrimp and finally the mayo.