I have some stainless Tees that I used for awhile before I bought my 5 way manifold. I'll see if I can dig them out. I think I sold my spare regulator on craigslist, but I'll double check.
You can make a manifold out of 1/4 inch brass pipe with a few brass Ts. Doesn't cost much & you really don't need valves. Knowing you guys like I do, I doubt that you will ever have any empty stations. I leave my gas off and just turn in on when the flow gets weak. If you do this don't forget to wrap all of the threaded fittings with teflon tape.
Did you get your CO2 manifold problem solved? If not, I have some 1/4" brass tees that can be screwed together to form a manifold of any length. If you need a couple let me know. You will need one 1/4" pipe elbow for the last section and a 1/4" male flare to 1/4" male pipe fitting to connect to your CO2 line. You will also need 1/4" valves to independently turn the CO2 to each keg on and off. The valves should have check valves so one keg does not try to pressurize the other kegs. I got my valves from Dawn.