spigot~ for multichannel-audio video files?

I need to play a video in sync with 4 audio files. Ideally they should be embedded into the video file, the only issue is that I need to process the 4 audio channels in MSP. Spigot~ is ideal but unfortunately only works with 2 channels. Trying to play the video and the audio files in separate objects failed so far. The video file is about 5 minutes long and eventually needs to loop and stay in perfect sync for many hours.

The only thing I can think of is to create an aggregate device with soundflower and my audio interface and route the 4 signals from jit.movie to an soundflower output and then grab that signal with Max again. But this is a messy workaround that will also introduce latency(which is also very important as there is live input over a microphone as well)

Any suggestions are very welcome!

Thanks!