so basically, brian, you said i wont actually need to use the rolloff for the show?
Without knowing the venue, the sound system, the band, and the sound engineer, I can't make a call one way or the other. One thing I do know: if you use the bass rolloff and it removes too much of the bass, you can't get it back. If you don't use the bass rolloff and it's too bass-heavy, you can always roll it off in post-processing. I'd err on the side of no rolloff.
should i use the rolloff on off and use it to power the mics and go line in or use the plug in power on my M1 to power the mics alone?
if im going to use the box to power the mics, how do i set it to not have any rolloff, all of them closed?
I would use the battery box to power the mics, with no rolloff, line-in. "No rolloff" in this case means the lowest rolloff available on the settings, which I think is 16Hz. The mics have a range only down to 20Hz. So, since you're rolling off at a point lower than the mics can actually capture, it's the same as no rolloff.
would i be better of with the card or hyper caps?
Same answer as the question about whether to use rolloff or not. Try cards one set, hypers another - it'll give you an initial feel for how each set sounds in the circumstances under which you'll be recording.
Experiment, try things out - I think this is part of the fun. Keep in mind: not every tape is going to be perfect, so you might as well have fun trying things out - rolloff levels, caps, mic config and location, etc. - to see which works best for you in particular venues, with particular bands, etc.