One point made in the instructions is that the clutch tends to fuse to the pressure plate so when storing you should block the clutch pedal down, .
Glad she is up and running! Lots of these still have the clutch pedal lock still in place you might look at the bracket the clutch pedal stops on when pushed down and see if there is a u shaped bracket. If so that will come around and grab the clutch pedal that is what it is for they used them every day in Japan most likely not just over winter fwtw.