Looks like good progress so far.
Be interested to learn a couple things from your experiences as you progress
1) Do you have any ideas about why the inner bearing failed? Can you get any hints from its condition if its an assembly/spacing issue, bad part, etc etc?
2) What issues will (did) you run into rear fitment and reassembly especially in getting gear engagement correct.
Thanks for the update.
Oh- a suggestion if you add a vent. Do one with a permeable membrane of some type (eg goretex, teflon, etc) so you can gas exchange without getting water vapor or grit in. Not sure you need it at the correct 180 ml volume but it won't hurt. I think a lot of the reported blown seals actually result from dealer overfills- I've measured over 260 ml out from work not done by me - that's over the factory fill or refill amount and enough to cause a pressure increase inside a sealed unit.