This pic (on the pilotfriend website) shows the aircraft as she looks today, rebuilt after a second accident with Des Penrose (engine failure and a forced landing in standing crop near Old Warden), which shows the visual differences between the Percival design in Opssys's pic and the mods for Henshaw by Jack Cross. How was she rebuilt after the Redhill accident, I can't recall?
if you want to know the nuts and bolts differences, I do recommend you read Alex Henshaw's "Flight of the Mew Gull" - an excellent book!
