Combining bypass bar/looper with Spyder PSU....Hum free?

[momo]

In an effort to save space on the pedal board, can I combine both into a metal bar?, I know that the Spyder is not the most compact system available, but the thing is that I have a combination of negative and positive ground effects, so this seems like the way to go, with an added bonus of being really quiet.
Will the EMI of the little individual power supplies(from small bear), interfere hum wise with all the jacks present for the looper?
Im not aware of anything available that could maybe fit over the small bear psu to minimize EMI.

I have a perfect metal case for it, (imagine a 2 by 4 piece of wood about 12 inches long).

again, thanks for sharing the knowledge!