double tap kegerator

Hi all just purchased a kegerator series 3 and wanting to know of any upgrades / mods I can do to it. Been reading that a font fan is necessary, which one is best? Also can I upgrade the control board to a series 4. New to the scene, any help will be appreciated 🍺🍺🍺

Just bought a double tap Kegerator and thinking I need to upgrade it to 3 taps I havent even gotten around to building the fridge but was thinking I could just buy a third tap and drill a third hole in the faucet, has anyone else done this? Cant see it being an issue but cant find any posts on it