Well here is the finished "product".
Joe417 you get the winner winner chicken dinner trophy! Thank you for the "duct tape" idea it worked perfectly.
So I cut away at the plastic trim strip thinking I would remove the entire section and lay the diamond plate back down flat. Apparently that trim strip has a backing on the other side. Think of it like an I-beam I guess. You have the flared piece on the front with a straight connector in the middle. On the back side it looks like there is another plastic piece that lays against the body of the camper.
Once I found that I went to plan B and just cut away the bottom section of the trim piece allowing me room to lay the diamond plate flat again. I squirted some roofing adhesive in behind the diamond plate to make it stay flat.
Side note - it's very hard to get a caulking gun into that tight spot. If you think home economics taught you nothing....... I fashioned a "piping bag" - think cake decorating out of a zip loc bag. I pumped some of the caulking into the ziploc bag, cut off a corner and easy peasy in goes the caulking even with a tight crack.
I put some pressure on it to make it hold flat with a handy dandy 2x6 and a tv tray overnight.
Came back the next day and super duct taped that bad boy shut. That metal backed duct tape seals very nicely. There you have it!
I have all the stuff to do this to your rig if you have the need. I'll only charge $50/hr plus gas for travel!

