Although I have drawers, I really think the best setup in an FZJ80 is a platform with bins underneath. If you build a platform just above the fender wells, you get more flat storage space AND it creates a nice sleeping platform with the second row folded down.
Underneath that you can store however you want. I built drawers, but frankly, drawers take up storage space. If I had been able to find bins that efficiently used the space underneath, I would have gone that route. It's simpler, cheaper, and I think it probably works better.
What I really like about having the storage system is that the stuff I carry everyday (tools, compressor, tow straps, fluids, etc) are all securely stored out of the way. I'm still left with the entire cargo floor area to load as I please and I now have extra tie downs. Before, I had all my stuff in a large ActionPacker. Storing that between the wheel wells really cuts into the storage area. Moreover, I always had it tied down for safety as I really didn't want all my heavy crap flying around in an accident with two kids in the car.