I've just had a chance to read this post fully.
What can I say, but AWESOME!!! Have you done all of the work yourself? If so, where are you based, and what else are you/your company capable of doing?
Seriously awesome work there, will look forward to the next project.
Does beg the question though, of being able to convert the Tiptronic A/S8's to manual, there's gotta be more room in the '8 transmission tunnel than in the A4??
Oh yeah, found another image of the Cosworth S4