I am tudoring myself recently with a new mig and gas setup to tack and weld the inner and outer pieces. Seems to be a fraternity here if you own such a truck. I bought them locally here in vancouver bc. I had to cut and grind to match up and need some finasse where the inner meets the floor and the outside cowl meets the frame under the cab. Will probably have to weld some pieces so that I can get rid of the gaps in this area. And if need be some seam sealant might help as the last resort to keep water out. just want to get it down for driving