Proper leather shoes

G in UK is not that uncommon. That's in Alden US E and EE--- depending upon whose G. EEE too is not hard to find. If you are 4E-- or even EEE--- you probably have other othopedic problems and might well be best suited to seek specialized shoework.

EEEE for my sins. I tend to have to go up an entire size to get close on the width. No other orthopedic problems FWIW.