Gentlemen,
The April 2010 issue of German magazine 'Powerslide' (issue #05) may be of interest to you as it has an 11-page in-depth feature on the 3100RS Capri in their 'Cars in Detail' series. The feature includes cutaway artworks, detail drawings & photographs etc.
You can probably get a back issue via their website:
www.powerslide-mag.de (hope that doesn't break any rules!).