So currently the machine will start a game and Player 2 and Player 4 score reels are fully cleaned and functioning.
I also have the chimes working now, after deciding to take a quick break from working on the reels.
To fault find the chimes I started a game and activated the switch on the "L", "M", and "N" relays that controls each chime.
I could hear the chime coil buzzing so I figured they were ok.
Turns out the coil sleeves just had some grit in them that was prevent the plungers from dropping back down.