My recommendation to go AMD is due to a few things.

First is cost. Even though you already own a kit, the labor to have it installed could easily surpass the cost of an AMD hood (even though it will also need at least some minimal finish work done to it).

Then there's the finished product; The AMD hood skin is stamped from one piece of steel like the factory hoods, the drop down for the trim ring being clean is important. The NWP kits require hand forming the drop down flange with a flanging tool and then usually requires some artful bondo work to make it look nice.

Then there's the trim rings, AMDs being more accurate to original.

There are other reasons but the above carry the most weight for most.

.02