Panel dimensions for an Alon?

Howdy folks!                 I’m looking at laying out a new panel for my Alon and was hoping someone here has some experience that could be shared. I’m hoping for info on sizing and dimension for the panels themselves so I can fab (with my local shop) the panels for a new radio stack and mounting my G5’s in the panel, instead of on top.                 Thanks in advance!                 josef (512.773.8818 - jz (at) zeevi (dot) org)