Sooooo...
are you gonna make it like 'what happens in the real game' when gregory comes in the story ??
If it does goes like the plot of the game then I would like to see the part where Gregory topples over the hurricane Hole-in-One bucket on Monty and he falls down getting shattered. Y/n goes out looking for Montgomery when she notices a loud crashing noise coming from Gator Golf and she rushes there to see what has happened. When she reaches there, she finds Monty laying on the floor in 2 pieces (OMG that would just be heart breaking).
Now I am not sure how she manages to take Montgomery down to parts and service
1. Maybe she finds another animatronic and asks for help.
2. Maybe she calls venessa for help
3. Maybe Monty was half alive to crawl down to parts and service (He will be needing Y/n's help in pressing elevator buttons and opening doors.)
Anyways this is just a suggestion. You are the Auther of the book, you can do whatever you want. :)