Yeah looks like BOX to me too...after Yorke had refurbished it he asked me to test fly it and then demonstrate it to potential buyers...which I did...was eventually bought be a Taswegian sheep 'farmer'. I taught him to fly it and then he headed off in it back to Taswegia. I have no idea what the Oz rego ended up being and heard years later he had pranged it in one of his paddocks.
Mighty interesting aeroplane to fly that one...truly a 'go anywhere' aeroplane in the right hands...if not a huge load hauler.
Chuck.