Does anyone know of a place to get one of the square types of propane tank regulators, i.e. like the original one on my '85 vanagon westy? I want to replace my leaky one with one in which the original plastic cover will still work. Also, I'm thinking of getting a small 2-3 lb propane tank that can lay on it's side to install up in the luggage rack to power my portable heater. Since I have to open a window any way for ventilation I want to just run a flexible propane hose thru the passanger window to the heater. Any one ever do this? Advice? Thanks in advance, K