problem I see is mounting it down there. Not really much to work with. but if you can find a way I'd go that route. No need to worry about blocking airflow, I;ve had the bucktooth look for many years and never an airflow problem.
I mounted mine using a rear plate bracket, if I recall correctly, the holes used to mount the rear plate bracket line up with the holes in the euro bumper
I have a front mount plate thing that in going to try.
I think i will probably go the lower route, but idk.
It has the spot for a euro plate, but since im in the us it really defeats the purpose of having it. Do they make a filler maybe?