some skirts im working on. here is a quick mockup.

question is what is the best way to reattach the front end part after trimming? not sure what material it is but is kinda hard and flexible.

next is the rear by the door. i want to mount the part that will be trimmed off to the door
need to know what will be the best way to do this and build up that part so its flush with the sideskirt.

im just looking to do most of the ruff fitting before the car goes in for the bodywork to pull/roll the wheel arches..

fyi: tires will be 225/35/17 rear and 215/40 or35 fronts