Welcome  Spanky . I checked out the link on your event . Nice big venue you managed to get hold of.
Good range of games too , The Meteor stood out
Good luck with the Wild life .
Get a multimeter if you don't already with Beeper/Buzzer to check switches and also to measure resistance of Coils .

Work through the Steppers  IE Credit, Bonus unit, Player unit etc. And all score reels, make sure they operate smoothly/freely,
These Gum up over time and need freeing up . Usually only 1 or 2 metal pivot points that need oiling on them.

Check and clean the switches on the steppers too.
I use some metho on a piece of card to clean most switches.

 When they all operate freely  , the game should 'work'. or at least it should have some life . Then you can work on from their.
 Ralph