My brother and son are resto-rodding a '57 GMC and the portion of the cab around the top of the windshield is very rusted out both inside and outside. I found a '60-'63 cab that is very clean and solid in that same area but totally shot everywhere else. Since they have the similar wrap around windshields would anyone know if he could cut out the portion of the '60s cab to rebuild the '57? It's the front drip rail and the edge where the windshield rubber connects to. Any help would be greatly appreciated.