Thank u mate 
Sourcing other type of hook (with hinge) was easier than this one but I like this type so opted for it.
I took this pic as soon as spray painting of bumper finished. That grill was touched with brush later, tight now don't hv new pic.
Well about installation it is pretty simple
Let me show u pics
Drill two holes there and cut a small portion of vent in bumper
Even hook can b adjusted between gap without cutting vents.
And for competition, wish u all the best 