Power Supply stand for double HP DPS 600PB HP, PSU 24V

I'm currently building a case that contains the PSUs and control boards and stuff to power up two 3D printers @24V.

This is the stand to mount two 12V HP Power Supply units onto it so that we get a 24V 47A PSU.

The stand is designed to meet the following conditions:
- Sleek design
- Standalone without any further mounting
- Ability to mount the stand on a plate (to fix it inside my box in my case)
- Allow enough air flow through the PSU's that will be sucked by the internal