You might be interested in these pictures I took at SAAF Ysterplaat during a visit to Cape Town in 2008. It was supposedly the last engine run-up of Shackleton 1722. Fortunately, I knew the curator who invited me to the occasion along with a few other people in the know. I was also allowed to walk around the aircraft with the official photographer during the engine run so I wouldn’t imagine that there are too many pictures of the occasion.
http://forums.airshows.co.uk/viewtopic.php?f=40&t=41900
Graham