Rob,
As someone new to the Douglas marque - a little warning! When refitting the kick start, don't be tempted to fit the lever in a more upright position. Mr Douglas fitted the lever just above the horizontal position so that most of the momentum of the swing is exhausted before the kick start quadrant contacts the inside of the 'box. Fitting the kickstart in a more upright position usually results in the top being punched out of the gearbox case.
Regards,
Eddie.