Distros Up Side Down

[Ryank]

Here's an interesting question. Is it legal to have the distro up side down? What we want to do is have a plate on the top of the chassis (6.5 inches tall, thick, whatever) and on top are our two breakers, maxi and circuit (12 port). Then on the bottom we want to have the distro. The distro would be accessible by a translucent plate on the bottom held on by maybe four screws, something easily and quickly removable. That way if somethign pops out of te distro we can just prop up the bot or put it on it's side to get to it. The 6 awg coming off would make almost complete 180s through holes in the plate to get to the breakers on top.