Started running just in daylight hours like you suggested, the airpump stays on 24/7 for the fish. The bookends have small 1/4" T-siphons that draing back into the fish tank independently. The main bed has a 1/2" T-siphon. To feed it all I have one pump that connects to a four way, each bed/pot has its own ball valve so I can control the flow to each indpendently. I played with it for hours to get each one set at the minimum flow for the siphons to start.
The valves let me turn each bed off once it's siphon starts making sure that the beds are empty at night. The siphons are all set to be about 2" below the top of the media, so the top pretty much stays dry.
Most of the design came from forums like this, YouTube, and a commercially sold one that goes for over $1.5k. I think I have about $500 in this one total, the media being the most expensive part. I'm working on putting a spreadsheet of costs and plans together for it since now half the neighborhood says they want one. I like to say that I have a Ph.D. in YouTube.
I will ill try and take some pictures of the plumbing but it's my weekend to work, ugh.
Incidently the only power tools used making the thing was an old black&decker battery powered circular saw, a drill/screwdriver and a staple gun. My workshop consists of a colasable bench in my garage.