It is not to late, to post a Website over the Rebuild a G60 on Kompressor.Especially AMG SL 320 Kompressor.
http://www.willyswerkstatt.de.tl
or
http://www.willyswerkstatt.de.tl/Umbau-auf-AMG-Kompressor.htm
There is also a Report about a 16V 9A with a Roush M90 Supercharger. http://www.willyswerkstatt.de.tl/Umbauprojekt-Kampfhamster.htm
Please post your Opinions about this.