Wiardgroup

>  You should seriously consider NOT internally mounting your power
>  supplies - the added heat may create instability issues - mount the
>  power sources outboard!

For my modular (unfortunitely not Wiard), I used army suplus ammo cases 
like the one in the middle of this pic for power supplies:

http://www.sprucemtsurplus.com/AmmoStorage/ammoboxes-lg.jpg

A MOTM power supply panel (http://www.synthtech.com/motm900.html) fit 
almost exactly inside the box, leaving a small space just the right size 
for the connector cable to fit inside when traveling. I added a 4-pin 
screw-on connector on the panel, and a matching connector on the 
appropriate position on the module case and made a custom connector 
cable to hook the supply and cabinet together.

I'm currently "without modular", but when/if I do it again, won't 
hesitate to use the same configuration for the power supplies. The army 
surplus cases are almost tank-proof!