Chris. When it came time for the headliner in the Batwagon here'z what 'n how I did it. I used the front 3 bows from two '61 4 door sedanz and welded 1" square 20 gage tabs on both endz of all 6 bowz and spaced 'um 'bout every 15"s front to back and screwed 'um to the roof railz. That way you have the right length bowz in the Long Roof to correctly bridge the width 6 timez. Then I bought 5 yardz of cream colored "rattlesnake" headliner material and found ah stitcher that knew what he waz doing and had him put it together for me. If you're not sure, headliner AND seat fabric per measured yard iz 36"X56" and with 5 yardz you wind up with two pieces 108" for the side to side and two pieces 56" for the front to back" minus the 3" stitching loops every 15" front to back! Ah little pricey by the time you're done but it lookz like Mother did it or shoulda coulda done it when it'z installed. BTW Pal, Theirz one dude on the planet up in the twin cities area goz by the handle of Mopar Mel on the web that doez re-man the cardboard panelz AND the Mylar stripz for the long roofz but get ready to put your 1st born child into life long servitude if you want hiz stuff, Jer