Multi audio channel visuals

[Spudmagic]

Video output canvas size: 3080 x 480, 5 stitched projectors through Resolume Arena, tons of space =D

I am designing an AV system that will incorporate multiple audio channels from the band/performers(at least 5). The goal is to apply each sound channel to a video layer, each musician gets their individualized sound reactive video backdrop. I have approaches for hardware and software combinations already mapped out. My endeavors are to know, has anyone ever done multiple audio signals to a multi-input sound card/MIDIbox etc., analyzed by FLStudio, AbletonLive, or QC and those audio channels are then Rewired as audio reactive signals to GVJ?
that setup is then bussed as 1 video signal via BlackMagic intensity shuttle to the mainbrainDisplay where Arena is controlling the main 3080x480 seamless projection wall.

right now I am deciding the better of my two approaches, based on my thoughts and concerns about system bottlenecking, how smooth the VJ experience is, and exactly how much audio analyzation (5 signals to 5 layers) can the fastest consumer computers handle with the lowest of latency to the audio reactive paramaters. the above method requires less hardware, and time consumed programming it all, than the one i will describe next

my second method would be applying each Audio channel to its own video source computer, multiple VJ interfaces analyzing only 1 or 2 channels of audio, which will hub into the mainPC running Arena, i feel this method will flow smoother because every AV reactive signal layer from each video source computer will be accessible as individual video layers/sources on resolume, which has a greater customizability aspect because specific layers need to be repositioned to where each performer is standing. this method will greatly lessen the feared AV analyzing sync bottleneck, (If there is any) which would enable focus to more video layers and effects which would be applied to each individual signal. the fallbacks of this requires a bit more energy to VJ, programming and acquiring more systems, but it can become much more explosive and intricate due to more computer interfaces incorporating their full potential.

any suggestions, advice, from anyone whose done anything similar please give a shout.

-Spudmagic