I like the design. It looks very simple and very effective.
Have you ever tried Anderson Powerpole products? They are perfect for what you want to do instead of that bundle of yellow connectors. They are even easier to disconnect and reconnect.
HERE is a link to the website and you can get them at Allied if you want.
Trust me when I say this, they will bring new meaning to "modular/removable" in modular/removable control panels.
Pavan.