Oh... I am not sure he could not take it apart.
Split the cab, use angle iron and wood planks on the inside of the seam. bolt together. fill with wood puddy and sand, wood puddy some more, sand again,
paint. I think it could be made very strong.
My 1st cab has angle iron and 2x4's as a shelf for my T.V. I think way over kill but I had it around at the time