You have a lot of options with these sources. I'm sure that others may have suggestions, but I've had some success getting good sounding recordings by mixing together the audio from mics on the stage, plus a soundboard feed, plus some ambient sound - either from a pair of mics on the stage pointing at the crowd, or from mics near the soundboard (or both).
So, in your case (if I understand your rigs correctly), I'd put the Sony on the front of the stage with the AT cardioid mics on a small stand (like a kick drum mic stand) pointing at the band in a DIN, XY, ORTF or whatever pattern you like.
Then, I'd put the Roland at the soundboard and have them give you an XLR feed of their two main output channels. If they're running everything MONO with no added reverb, then you can take one main output and ask for the other to be the lead vocals. (this might not be as easy for them to route).
Use the other channels of the Roland for the AT943s in an XY/DIN/ORTF etc, and maybe the binaural mics spaced out as far as possible. This setup may be tricky since you may need cable adapters to get everything plugged in.
Once you've got the files, they can be time-aligned and mixed in Audacity. If you notice timing drift between the various decks and cameras, that can also be corrected using an old version of Audacity (described elsewhere on this site).
Good luck! Have a great time!