Yes, I figured out a way to use a standard BBQ propane bottle (20 lb.) and plumb it to the existing regulator. Get a high pressure propane hose and fit one end with a POL fitting that connects to the propane bottle. On the other end of the hose put a female POL fitting. Now you have a propane extension hose. I haven't finished the install, but I would place the propane bottle up top on the luggage carrier. Run the hose down the side just behind the door and under the van. The original Westy propane regulator connects to the original tank shutoff valve with a POL fitting just like a standard propane tank. Disconnect that fitting, flex or bend things as needed to back the regulator and original male POL fitting out of the original tank POL valve and then connect the regulator POL to your extension hose.Has anyone ever used a normal propane tank (like for a bbq or camping trailer) instead of the stock vw camper one? If so how did you go about it?