I'll check one of the actual gaskets I have here tomorrow morning. I think sometimes the images might be wrong on Ali but I haven't checked the ones from my most recent order so I hope they are right.
I haven't changed any bearings yet, they have all been in very good condition, I just popped the seals off where I could and cleaned them up while they are attached to the cogs and shafts with brake cleaner and then air-lined to dry and re-greased them all. You will need some bearing puller tools to change them but they are all quite straight forward.
All the cogs come out like the attached photo, you have to wiggle some of them a bit. I recommend taking photos of each step so you can put it all back together after. There are a few o-rings and washers so be careful to remember where they go and watch out for the ones that stick to the case with grease.
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