don't rely on tubes and trains...

So, here's a proposed schedule:

• Leave parents' house 06:00 (car or taxi) [14:00 JST] ( ...more... )
• Nagoya -> Okazaki arr 04:30 [12:30 JST]

(Journey times courtesy of Multimap, National Rail, TfL, expedia and yamasa.) Anybody care to speculate on how much slack I ought to add at various points?

The observant will note that this plan works much better if (a) I start out already at least halfway towards JST and (b) can sleep on the plane...