The guys at the '59 Register were really helpful with Speedy - they know their stuff! - http://1959miniregister.com/
Without wanting to divert you from TMF, the Early Mini Forum on the Specailist Mini Forums is another great source for information and parts - http://www.specialistminiforums.com/. You have to be a member to view posts.
Congratulations and good luck - I look forward to seeing Huxley's progress when time and funds allow