Hi John,
Take a look at these links,
http://picasaweb.google.com/beartoothweb/3LinkInstall#
http://www.sierrafirerescue.com/cobra/3link/3link.html
http://www.ffcobra.com/galt/FFR_3_Li...Suspension.pdf
The Coupe kit I have started out as a 4-link and as far as I could tell was the same rear setup as my mk-II Cobra. It was a pretty straight forward install as I had good access to all areas, it might be a little more complicated on a finished car. I can take some pic's tomorrow and look for the install doc's if the above links don't help.
Dave