yes, the front fenders will be bigger than those on a 1/2T, and I seriously doubt the cab of an AD would fit on a TF frame - very different frames, and all the sheet metal mounts in a particular way to the frame - especially the front sheet metal mounting, which determines how all the front metal fits to the cab - outta be an old 1.5-3T TF model layin around in the weeds, and all you'd need then is good fenders for 1/2T
Bill