I have finally documented my digital cruise swap, it's at http://www.fieros.de/en/articles/digcruise.html
One thing that may be interesting is my solution to attach the cruise cable to the throttle body by means of an adapter:
The adapter is available in printed stainless steel at shapeways
in case anyone wants one.
[This message has been edited by fieroluke (edited 05-07-2013).]