Hi Dom,
Not an easy one (at least from my machine). Running the plan with my B757 I make it just over 3700nm and a flight time of around 8h 30hrs (at m.080). Using SEGS / PHTO / NTAA the route still falls outside my 138min etops. An optimised route on my system comes out something like this: DCT 06N110W 05S120W/M080F380 13S130W/M080F400 17S140W DCT
Sorry its not much help!
OJ