two important questions??? tool boxes and controller

[BRICKNICK]

I'm looking at a good deal on an airtronics rds8000 controlleris there a special or perticular model I should get? The one I keep reading the discriptionand it says they are for helicopters and airplanes. Unless this is a different model then I should be buying. Question number two.......where can I find the aluminum tool boxes to put between my tandeems on my spread axel flatbed? I've looked all over PMD and don't see it. I know the late great Freddy gear drive made them, but is there some where else I can acquire a set of tool boxes?