Calumet CC-400 disassembly?

[Froeschli]

I need to fit my CC-400into a suitcase. I figured I could just take it off the rail, but the Allan key size on the end caps does not correspind to any in my tool kit.
Anyone know what size those screws are (or even just whether metric or imperial) or am I better off leaving the rail assembly alone and "just" taking the top part of the camera off.

[Jon Shiu]

5/64

[Jojje]

Imperial. Easy to take apart, but don't lose the nylon friction pads under the locking levers.

[Froeschli]

Thanks!