I have not done anything with my truck's storage, after all this time.
A platform with bins is probably less efficient than drawers, no?
I liked my drawers in my FZJ80, but they have drawbacks. They actually aren't totally efficient:
There's a lot of wasted space that gets taken up by the thickness of the drawers, the space for the slides, and a little more at the top and bottom. The plus side is that you can build your drawers to maximize that space, whereas with plastic bins you need to be a little lucky that they fit efficiently. If I could have found containers that fit well, it would have been cheaper, lighter, and every bit as useful. Probably wouldn't have looked as cool though! The inability to use the 3rd row without taking out a drawer was a drawback. And even though my system was modular, it really would have been a PITA to unload the drawer and remove one or both sides.
The overall design has a lot to do with it too. On my LC, by building the drawers at the same level as my wheel wells, I ended up with more flat, useable space to load. The 10" or so underneath wasn't really missed since I had more floor space. Another example would be if you kept an Action Packer in the back with your tools, etc in it. It can be a pain to load around a container like that. But if you could put the contents of the Action Packer under a 2" raised floor, you could pretty much load like an empty truck and would never miss the 2" under the floor.
You really need to design a system to fit
your vehicle. I plan to do some sort of storage system on my GX470, but it won't be drawers - more of a box where I can still use the 3rd row.