Australian National, in operating its Islington terminal, employed several stack reachers and fork lifts. The following links, show some operation mid 1980's.
http://www.flickr.com/photos/cpdbear/4534125789/in/photostream/
http://www.flickr.com/photos/cpdbear/4534758426/in/photostream/
http://westonlangford.com/media/photos/116966.jpg
Below is a diagram I used to adjust the Kibri kit. Many stack reachers are of a similar design to this machine. ( This picture came from http://explow.com from US Patent Office for Mitsubishi designed reach stacker).