are the disconnects that I link ( https://www.focusattack.com/philmore-110-non-insulated-quick-disconnect-terminal/ ) the right ones for this ? Will the wire fit in there twice to form the chain ?
Yeah it’s fine
Wiring part is easy. Panel modification is the hard part.
That said a Step Bit would be the easiest way to drill
Foster bits are for thick plastic or woof only, hole saw would work too.
You might also have to cut the under structure of that Hori stick as well.
Im using a different box for this setup not the hori mini