Summary

I wanted a high amperage power supply with an ammeter. You can pickup a 30A supply for fairly cheap. See instructions for sources.

Instructions

Almost everything came from amazon with the exception of the power switch which came from Radio Shack. However any switch that mounts in a 20mm hole will work just fine.
Shopping List:
http://www.amazon.com/gp/registry/wishlist/3PSRJKEC7RZ2Y/ref=cm_wl_rlist_go_o?

Power Switch:
http://www.radioshack.com/spst-16a-125v-illuminated-round-rocker-switch-with-red-led/2750020.html#q=round+switch&start=5

Print with support with the panel face down.

You will also need 3 M4x6mm bolts to attach the panel to the power supply.

I had to cut down the shunt for it to fit in the box. I removed all but a couple of millimeters from the mounting area of the shunt. Leaving one of the mounting holes but removing the large bolts entirely.

30A Power Supply Case with Power Panel, Banana Plugs and Switch