Plastic to aluminum

[dustyrhodes]

We stripped the vinyl off the walls in the front section of my 77 Overlander 27 feet. I wanted the entire section to be aluminum and was convinced that under the top/front /end-cap that there would be aluminum as well. Sadly there was nothing there but insulation. The end cap with shelves has now been destroyed, although the plastic was badly damaged, cracking before we got started. The only thing I will be able to salvage is the airstream digital clock. I would like to install aluminum in the front but have no idea where to begin. Where do I get the material? How to I bend and install it? Is the trailer less secure without the plastic? Have I totally screwed up? I have been practicing with the rivet gun, but am still shooting far below the mark of sharp shooter. Any help is appreciated.