The sound guy reckons he'll have enough work to do mixing the live sound, and has gone over completely to digital so doesn't have the facility to record a 2 hour performance (takes up too much disk, apparently). There's insufficient time to download from his rack of PCs onto another medium.

His opinion (I have no reason to doubt it, he's been doing it for 30 years) is that the easiest way would be to get a second mixer, a second sound guy, and a set of gear to record the 24 tracks we'll be using live...

I've no knowledge of things PA-ish, I just sing into them and say if it sounds OK, so any and all comments are gratefully accepted...