Making any progress yet or is there anything i could help you out with?
I am very interested to see the final result. Because i think the game will become more fun the more good sticks you encounter. I was actually considering making a traing series as well (this was a few weeks before i you posted this).
(my personal preference for editing software is Adobe premiere pro and Adobe after effects. But i know Tactus is using Windows movie maker, this seems to be a bit less complicated to use. PS: for recording OBS seems to be the go to software indeed. I am still using shadowplay (nvidea's own software) it also can record separate audio tracks but overall it its more limited.))
I don't know if anything i posted is helpful but i hope it is.
DutchVII