Today I was finally able to fit the firewals strips. It required a lof fo bending, and reshaping of the taps. I only set bigger ot the two, and tomorrow will take it apart and fit the second. They will have to come off to set the side skins, but for now is done, and will be easier to get the skin to fit.
The instructions on this step are very vage, and the pictures don't help much since the are not really acurate.