Ok, here's the inside.
Instead of a four way manifold or prebuilt secondary regulator, I built a four way secondary out of duotight components and inline secondary regulators.
I bought the regulators before the inline secondary regulators WITH gauges came out. Having played around with the blowtie spunding valve, I'm glad I didn't spend the money on the new gauged inline regulators.
I don't think there's enough precision in those tiny gauges to use where I want accuracy.
So, I built a spunding valve using a digital pressure gauge, and I hook that on the outlet of my inline secondary regulators to dial in the serve pressure.
So I need to keep a screwdriver readily available if I have to tweak something.
Big deal.
I wasn't sure how I was going to mount the four way, because kegland had not yet started selling the polycarbonate project panels they now have.
I had some spare mdf. I primed that and screwed the regulators to it.
Then I added some command strip based hooks rated for 5lbs each, two on the gas panel, two on the inside back wall, and used a split ring key ring between each pair.
Used command hooks to hang the circulation fan (120mm usb powered) on the left inner wall. There it won't get in the way of kegs on the hump.
Intertap faucets with springs installed, and the 4" shanks designed for duotight connection - I like the modularity of their components.
I'm including a close-up photo to show the finish on the front by way of reflection.