Sorry for the little delay.. I was in a training class at work.
I bought the two grille lights, a harbor freight dremel, and a tube of 5 minute epoxy..
Started off with the grille still on the truck and carefully dremeled away little by little where the lights will go, stopping and test fitting along the way until it sat where I wanted, then took the grille off the truck and layed it face down on the workbench and masked off where I didn't want epoxy to go (fill the grooves with tape so it stays where you want it), put a few small layers of epoxy, and while it dried I spliced into the main plug, ran the wires, soldered and zip tied, then it was almost set up completely I took some small screws I had laying around and screwed them down in the epoxy..
One of them didn't hold as good as id hoped so I put a clamp on it for a little while to set up better..
I was trying to figure out something to put in the channels to act as the OEM clips but I didn't have anything laying around small enough.. The one side still isn't exactly as snug as if like but I'm sure with a little more tweaking it'll stay where I want it..