HI There,
WHen i first purchase this bike and search for Brooks + Mobiky, your bike's pictures quickly came out from the search, and i was amazed how much work you have put into in modifying the Mobiky, i really like the overall look of your bike, a cross over between modern technology and old school classic parts!
As for my bike....Yes, i did rebuild the front wheel. I also read your flickR description, i absolutely agreed with you that the factory Joytech hub is one of the MUST GO item, its one of the worse component on the whole bike. The Shimano Nexus 3 speed system & the crank was the factory system for 2009 models.
Basically any part that i can think of a possible modification, i will go for it. Below list are some of the items that i modified:
1) Foldable MKS FD-6 Pedal
2) HOPE Pro II front 28H disc hub
3) Shimano R770 flat bar brake lever
4) Brooks B17 saddle + Saddle bag
5) Jagwire kevlar cable all round
6) Egron GP1 handle bar grip
7) Crank Brother front wheel skewer