Help fixing chuffing Annie

Ok so I found a number of listings for these gears but want to other people's opinion on whether they look about right. My only problem seems to be the 24T gear as I can't find one with it's own Axel (be it 2.5mm or not). Just the one listed without. I would have to put a peg in myself which would be very difficult to even cut to size let alone fit through. If anyone has better listings (or even exact listings) for these parts I would appreciate the help.

Here are my links to the gears

24T: https://www.amazon.com/LUANYUN-GG-242-5A...B098N5KQHZ

9T:
https://www.amazon.com/uxcell-50Pcs-Plas...144&sr=8-4

16T:
https://www.amazon.com/uxcell-10Pcs-Plas...YXRm&psc=1