You just need one regulator and co2 tank then you use a spliter for the gas line if you have two kegs then you need a three way splitter. as for the dispensing thats all preference.
It's a pretty good recipe I made it in Jan. but I think that the three Philosophers clone is a better recipe. I also made the triple recipe but it is still in my fermenter it's about 6 weeks old so I think I will bottle it tomorrow.