So I seen a 98 mustang that had a 99+ font end. It even had the 94-98 front fenders but it look liked they cut and welded corner pieces from the 99 to fit the headlights. It looked good. I didnt know if anyone has seen it done before?
The car that did it right was in mmff and looked awesome. It you can find that issue the guys that made the car own a body shop and they can make the fenders for you. It had the front half of the fenders, hood, lights, and bumper from a 99 and everything else was a 96. The only part that you would need to fab for the swap is the fenders, everything else bolts up.