So that's 1 out of 2 questions then!
I think most, if not all, spare parts were sold in some way or another, and to be airworthy the aircraft would need these (?). Seeing as they are not manufactured at all, you'd probably have to build a new Concorde to get an old one flying again. Doesn't strike me as Hot Rod's next golden business opportunity. I think he's happier knowing it will never fly again so that it's still just a BA/AF thing.
No facts to back up any of this of course, it's just my opinion.
Andy
oh and siegler.net says Chef! will be out on DVD this spring