I'm already using that stuff....i'm looking for the same type of hose that pepsi and coke use to rig up there pop machines. It has the big nut at one end of the hose and a fitting that screws into the side of the regulator (where the stem would go). This will free up another regulator for me, so then i can install a bank of regs inside my keezer for various pressures for serving, carbing, etc. Currently i have a reg attached to the tank with a line going into the keezer to a homemade manifold. If i don't find one used, i'll either make one or order one new.
edit..found a pic