I have a quick-connect on the outside of my trailer, and use a 3-burner stove (outside) to do all my cooking on. The quick-connect is post-regulator, so I imagine it won't work for a grill, as the grill will have it's own regulator.
So, I would have to get another "T" for one of my propane tanks, so I could run a line to the gas grill. Hose and "T", etc., would add another $100 to the project. If I could get by without a new "T" and line (I have 15' for my stove), it may be something to consider in a couple of years. But, I like the flavor of charcoal-grilled. Yes, I could put wood chips in foil, and have done that at home.
Experience with post-regulator gas grills? Do all grills have their own regulator?