R-134a
5W-30
5W-30 is the PREFERRED oil
Your 1996 Mercury Villager minivan with the 3.0 L - SOHC V6 engine is designed to use The Ford Motorcraft RT 1170 thermostat ( 190 degrees F / 88 degrees C )
The Villager does not use fusible links that I am aware.
The Villager has an electric fan and does not use a "fan belt".
R134
A 97 Mercury Villager should use r134a type freon. The valve size is designed so that the r12 fittings cant accidentally be used.
The engine in the Mercury Villager does not use a timing chain, it uses a timing belt. The recommended belt replacement interval is 105,000 miles.
You can use any standard antifreeze, there is no special type required.
Wipers normally use a breaker, not a fuse.
Horns normally use a breaker, not a fuse.