i will have nutplates affixed to the aluminum rebar, then, a metal “strut-type” bracket system will be implemented on a custom underpanel… on each strut there will be a “tab” which mates to the frame rail. i already have my lip secruely fastened via about 15 machine screws/ washers/ nuts. my brake ducts are screwed in to the cover as well. i’ll probably construct the under panel from some abs, cheap/ leightweight, etc… i will let you know how i make out, but i plan on this being a well-thought out process. :number1