I know its not the prettiest, but at least it works! I bought the three way splitter (that I couldn't use) for around $40. I already had the Fabco needle valve so I think I paid less than ten bucks at Hydra Air for these parts (I had to pick up some other unrelated stuff). Basically, I bought a fitting with two male receptacles and the "T" splitter. I cannibalized one valve from the flea bay splitter that was useless for me and the needle valve from my original set up. Don't know what I paid for everything total, but I would say it had to have been just a shade over $200 WITH a 20# cylinder of CO2!!! This one is a regulator with two gauges, a Clippard Magnetic Valve, the Fabco Needle Valve, the two sided fitting and the T split.
Could it have been done cheaper? Yeah, probably. I just didn't expect to be running more than one tank with CO2. Lesson to be learned? Plan your layout carefully and tailor it to what you want to do. Don't buy one set up, think about it, pay more money to try to retro fit it and then have to figure out if your retro fit will work properly without compromising too much!
I hope that this helped!