I love my 5 and 10 pound refillable cylinders for the boats magma, BBQ picnics, the beach, camping etc. A great size for portability. As someone who has worked in the propane industy, a jury rig is no place for a propane rig! Get the adapter hose and a refillable cylinder which will pay for itself quickly.
just a question-where did you get the tanks,i just went to ct,home depot,lowes this past weekend and cant find them.my next stop is a bbq store but they generally have bigger tanks.