I headed over to Action Gas and Welding which is a local gas and welding supply store to pick up a 10 lb tank and regulator. I had talked to the owner before and he is very helpful. They had a catalog for beverage dispensing but it didnt have fitting I needed for the valves but I found some really cheap at FiltersFast.com for $1.45 called “Liquatec Tite Grip Male Connector Fittings”. Here is the tank hooked up to a water valve to test the flow at different PSI. Still havent figured how much I should run but looking like ~5psi might be ok.
Also cleaned up some wiring on the water valves hooking the ground to the aluminum that the valves are mounted on and attaching the disconnects to the other wire.