I have a 79 Argosy...no panel in it either. I think it was an optional extra. You don't really need one; just learn the capacity of the tanks and go from their in exprience. That is part of the "vintage" experience. Dan
Dan in Mississippi, formerly of Ohio, New Hampshire, Alaska, New York and New Guinea...among others.....
From Paul Theroux: ..the difference between a traveler and a tourist is.."travelers don't know where they're going, and tourists don't know where they've been"