When we get back from SteemFest, we could potentially record a proper audio track to a click and alter the arrangement to leave space for a gt solo etc. Depending on what your time frame for this is (we could probably have it done by end of Nov).
We'd record bare bones, Vocals and Acoustic guitar and maybe an underlying percussion template that can be taken out later if need be... Get it mixed and then pass the audio off to you.
Or did you want it to be a video...? just spit balling here.
A proper audio track to would be great if you up for it. Everyone who participates will get a bit of video time. For you guys that part will be easy. But starting off with a good audio would be fantastic.