Thats funny looking, is it a XL or XLT model with out any upgrades like fog lights etc?
I would think it would work, you would have to remove your two pieces and just put in the one piece. The guy who custom builds the mounts might actually make it cheaper as he purchased the actual molding from ford and then does the custom work. I would imagine that the plastic pieces you are showing are cheaper then the Lariat pieces.
Call Rudy's Diesel Performance in North Carolina and check with them or check the previous messages on the thread for information.