I can't remember who did it, but someone on here has done a center console very similar to this... from back wall to dash, and I don't believe there was any fiberglass used on the entire thing. If you're doing the work yourself, then the fiberglassing is more time-consuming than expensive.
As far as the seats go, personally, I think you'll be better off with the buckets in back, but have you priced a set? A decent example of a real truck to look at would be the '00+ F-150 Harley Davidson editions... The crew cab version... they come stock with 4 buckets, and 2 consoles that have stock appeal to them.