Unless you are willing to invest in low-pressure (11" W.C.) appliances intended for RV use, you pretty much have to run high-pressure (tank pressure ~160 psi) gas because appliances intended for 1# tanks have built-in regulators that don't work properly unless there's tank pressure behind them. And each appliance uses a different pressure, my high-output propane turkey cooker burner wants 18 PSI, my low-output portable fire ring wants 3 PSI, and I suspect that my Coleman stove needs something on the order of 12 PSI. There's no easy way to satisfy all those different requirements.
That said, I don't run high-pressure propane anywhere. I remove the tank from the tongue and set it next to the appliance being used, and connect the appropriate hose/regulator.
<Chas>