Thank you everyone these are good choices for a travel flight modular case.
@Garfield- the problem is a supply shortage from Intellijel as they never have any cases in stock. Hopefully this ends after covid.
My goal is to put a fly rig together for after covid ends so when I visit Europe and Latin America, I can bring a portable modular rig and travel guitar setup to jam with musicians. It would be fun to visit the Befaco, Doepfer, and Erica Synths labs as well.