Pricey and they dont feel or act the same, simply sending out MIDI CC info, not at all like a real board directly connected to EQ, FX, pans, etc. Lucky you still doing live eh. Damn.
btw, my last venture with knobs was doing the vintage (analog) synth thing a few years back. Purchased them, restored them, then loaded up the factory presets and sampled direct to disk, note by note, them reprogrammed them and did it again, sold them to help pay for GF start-up. Lots of fun and around 500 GB of samples. Occasionally I'll load some into Reality and play the thru a system here. Very handy for -*test*-('")ing crossover points on speakers. So's a mixing board

I also have a pile of pics.
Ian