sounds like you are missing at least the jackpot motor, and maybe the entire unit.
games that used the jackpot motor did not use the flasher relay.
if all your perimeter lights turn on, then someone has rewired some things. The lamps needed separate wires to each pair so they could be turned on/off. Pair = the same position on the left/right of the glass.
got pictures of your entire top compartment? ... the wiring on the lamp sockets and the entire insert board would be ideal.
I'm guessing the motor games are much less common. May be similar to the flasher motor used on model 931 (circus) and like games.
a schem for one is the 831-ZZSH - you can find that on
https://bingo.cdyn.com/slots/