I'm currently doing a 68 Cougar restomod and have deceided to use electro luminescent gauges. After buying approximately $600 worth of misc gauges, pods and pillar posts I now find that APC is not going to make overlays for the two large gauges on the Cougar, citing not enough demand. They do for make a kit for the 67, 68, 69 Mustang. My question is are Mustang gauges interchangeable with Cougars? I know the fuel and temp gauge is different with the fuel being on the top of the gauge instead of the bottom but is it possible to use it in the Cougars instrument cluster without resorting to a complete refrabrication to make it fit?