Tomy holiday set parts needed

Trying to complete this set for my son for Christmas. Need the new Helicopter As pictured.

Also the gear has a crack does epoxy or super glue work best? Also can you buy replacement gears?

The building that runs the helicopter is loud too can this be rebuilt to quiet it?

[Super]

You could try to glue the gear but it may still slip since the crack will be a bit farther apart. Best that you replace it. Gears can be easily found cheaply on Amazon or Ebay.

I guess the Helicopter building is prone to being noisy. I don't have any experience with one myself but the one on Muddy Poppins Layout seems to always be noisy in all his videos when a train passes by.

there is an identical station except the platform is yellow also has the Harold the helicopter as well.   I forgot which set that station came from.

Best that you replace it. Gears can be easily found cheaply on Amazon or Ebay.

Super, I must be looking for it wrong. I too need some gears. Can you send us a link please?

EDIT: I assume US ebay may be different as I limit my search to UK. But found gear tooths on Jauce quite cheap. The question now is what's the use for 12 and 14 tooth? Am I right thinking the 12 tooth are standard drive axle gears? 

https://www.jauce.com/auction/m453613876

https://www.ebay.co.uk/itm/20pcs-12-Teet...SwcLxevReP

Also Talk n Action Engines are extremely delicate so he careful with them when they're in your son's hands.

Thanks for the help with the gears!

Anyone have a lead on Harold!? Also I need the blue plow for Thomas anyone have an extra I’ll pay!!

Found the gears but they will not come till after xmas. Does anyone have a surplus in the US that I could buy a few and email you a shipping label?

[Super]

Is Muddys Helicopter Building at the beginning of this video sound like yours?
https://www.youtube.com/watch?v=vWMnt_MZJ2w