In thomas_dullan #6, the auto-disband only happens during the builds phase, at which point any retreats to SCs would have been complete. Love #5 also.
To continue with his suggestions, for #3, what if "Saved" orders were a single checkmark in gray and "Ready" orders were a double checkmark in green?
I'm not so sure about #7 though. The 4th Edition (2000) rules state, "After each fall turn, (including retreats, if any) players adjust their units to match the number of supply centers they control." Someone might just retreat a dislodged unit into an unoccupied SC, reducing the putative victor's count below 18.
I like the idea of a 7 minute phase. I'd also like to see 1

6h and 1

18h phases.