A friend of mine , Tony, just sold one that he retrieved from a chicken coop many years ago. He sold it to a mutual friend , Murray, who is doing the restoration.
Tony was planning to restore and keep the bike, however during his last trip to England he was given a ride on a beautiful fully restored International. He found the bike to be vibratory, low in power and quite agricultural to operate. After riding a big twin (Vincent) an old single does tend to feel this way.
In fact it was so bad that he decided to pass his own basket case on to Murray, who will restore the bike but likely never run it or even put oil in it, just put it on display in his basement with the rest of his collection of old British bikes.
Glen