Paul
I have a UK cobra which I imported here to the US. I used the finish line rear license bracket because in NY where i originally registered it, you need to have the plate illuminated, so it needed to fit under the light. I dont know which state you are in but you may want to check that. Its not a great fit and the plate actually rests on the trunk handle ( i put a rubber buffer on the underside of the plate to prevent scratching). I use A-snake's bracket to hold the reversing lite on the rear bumper.
For the front plate I use a couple of these
to secure the plate to the lower part of the front oval bumper