MAnaged to get all the tickets I want from first 2 ballot rounds, just waiting now for any Avios flight bunfight and trying to sort accommodation.

England v Tonga (Sapporo)
England v Tonga (Kobe)
Argentina v Tonga (Osaka)
Scotland v Samoa (Kobe)
Ireland v Russia (Kobe)
England v Argentina (Tokyo)

Will keep trying for a final just in case and will get some kind refundable flight sorted (Avios or other) for a day/weekend trip just in case England get there.