TC,
I'm sure there are many plans
we can all come up with that could make things work better. Fact is
we won't make any difference to 'the plan' because the farthest
we go is here and not up the official channels.
The biggest problem with your 'plan B' would be the planning permission side of Rochester. Perhaps better located than Rochester would be EGKH-Lashenden/Headcorn, which would give an even better coverage of Kent including Dover, Folkestone and Margate which your plan B leaves out, but however covers half of London