WHAT SORT OF HELP DO YOU NEED, I FILLED THE ROOF ON MY 29
PLYMOUTH WITH A SHEET IF 1/8 STEEL.,CUT IT TO SIZE. DEPENDING HOW GOOD YOU ARE IT SHOULD JUST FIT., THE REASON I USED SUCH A THICK PIECE OF SHEETING WAS TO PREVENT "OIL CANNING"I MADE 10 - 12 SMALL FLANGES THAT I TACK ALONG THE INSIDE OF THE ROOF THEN SET THE SHEET IN PLACE. MEASURE THE GAPS GET THE SHEET AS SQUARE AS POSSIBLE. WHEN WELDING THE SHEET IN I USED A WIRE FEED WITH .23 WIRE,ALTERNATE SIDES OF THE CAR NO MORE THAN AN INCH OR SO AT A TIME TO PREVENT WARPAGE... WATCH THE CORNERS THESE OLD CARS HAVE A BIT OF LEAD IN SOME OF THE SEAMS!!