Plastic Gears for JR NES 810G

[Blahblahman]

Hi Guys,
I've searched high and low but can't find anywhere that sells the replacement plastic gears. It has mostly metal gears and the whole set can be bought for 30 odd quid but i only need the plastic one that has the splines on for the arm.

Any ideas.

[jiberjaber]

If it is the same as the 591 output gear I think I have a few of them, worth a call around to find out.