guys i have 2000 explorer that im in the process of doing a custom box. My idea was to use the back pocket in the pass. side rear panel. I know this has been done before but i would like to go a step farther I was going to cut the pocket out of the panel to make it bigger. Then fiberglass the back to conform to all the shapes. My problem is i would like for interior panel and box to look as one. I have experience fiberglassing but not to this extreme. I was hoping someone here could tell me how to make this look as 1 piece and steps required to do this. thanks in advance