The build record is a good decision. I also like your idea of online build updates, with photos. I think this would be quite time intensive for MMC but wouldn't be too difficult to implement as all the photos are already in digital format (of course!).
I'm at the factory in the near future, so if you want me to look for your car, let me know (via PM) your details (dealer and your name) and I'll try to get some photos for you.
