The parts list you've put up is basically the same as the stock on the Esaki. So I would say just buy the complete or build something very different.
@Sumo started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
The parts list you've put up is basically the same as the stock on the Esaki. So I would say just buy the complete or build something very different.