One of the realities of traveling around with your expensive film gear, is you need to protect it from getting banged around, crushed, dented, stolen, etc. You also know, that the people that load and unload YOUR gear, may not be so gentle with it. Hard cases can give you some peace of mind, and allow you (or your crew) to stack, and generally abuse the cases, without fear of damaging the gear.
The problem: hard cases are very expensive.
The solution: Build them YOURSELF !!
Here’s the website for parts: http://www.reliablehardware.com/