It can be done, but because of the size difference between the 5.0 and SC radiators, it isn’t exactly the cleanest install, and it will require custom brackets to mount the fan to make it work. If you want a factory looking install, get a radiator and cooling fan for a 94-97 V6N/A tbird/Cougar as that will bolt right in and work with the 5.0. As for the wiring, start with something like this;
Buy FAERSI 175-185 Degree Electric Cooling Fan Thermostat Kit Temperature Sensor Temperature Switch 40 50 60 AMP Relay Kit: Accessories - Amazon.com ✓ FREE DELIVERY possible on eligible purchases
www.amazon.com
The sensor grounds out when it hits 180 degrees, so just mount that in a coolant port in the lower intake, and wire from the battery through a 40A fuse to pin 30, pin 87 to the power wire on the fan, key on power to pin 85, and pin 86 to the sensor that comes with the kit, and then run the ground wire for the fan to a good ground.