Wow man, that was fantastic! Thank you!
Hopefully we'll be able to see more things like this in the future. There must be tons (or at least a lot) of material out there that is fit this kind of projects. I'm not implying that it is an easy thing to do. On the contrary, but with the right effort, talent, contacts and last but not least the right cooperation it must certainly be feasible. There a lot of footage out there that can be synced with either soundboard or good audience recordings. But of course the owners of such footage must also finally realise they can only ask reasonable prices for their 'precious'. I also ask myself where lies the satisfaction of keeping such material for themselves. Even if they paid a lot for it. But I know, I have a big tendensy to be naive. Nonetheless it certainly IS possible.
This would be a great project for FTD.