I am getting close to ordering hardware for my keezer build and am stuck on parts availability. There is lots of feedback on the virtues of having beer lines coupled to MFL fittings for ease of connection. The MFL is the route I want to go. But I am building a coffin-tower and would like a 90 degree elbow tail-piece. All elbows I find have barb endings. But isn't ending a beer line to a barb that is permanently attached to the shank defeat the whole purpose? The elbow would make for a less bulky tower which is preferred. Is there such a thing as an elbow tail-piece that ends with a MFL fitting? Regulators: I see most CO2 regulators with barb endings for gas lines. Is it worth the extra expense to have MFL endings (and barb swivel nuts) for gas lines? I expect gas lines are moved rarely, does anyone put MFL connections on their regulators/secondary? Is it worth the extra expense and potential source of leaking? My original goal was to minimize the cost of the keezer build, but that idea has quietly passed.