BWF and wav are the same. BWAF has more metadata.
I don’t know the Tascam’s i cannot help you with the modes. As long as you record all tracks you use you should be fine. And about cables, i don’t know which ones you have. So how could i say you have the right cable??
If the cables fit; try if it works.
What’s not clear to me is whether I need to purchase different cables or can I use the one’s I currently own. In addition, do I setup the Tascam DR60D for 4-Channel record with one of the channels dedicated to the Tentacle and the other two channels going to my external mics in mono mode?
Do I need to have to BWF mode or can I continue to use the WAV format? I have two DR-07’s, one DR-40 and one DR60D-MKII.