Your true best bet is doing MR --> Aeroplan. You'll just need to make sure you can snag PHX - LAX/SFO/IAH/ORD and then get on either the UA/NH flights to NRT/HND. Should be either 25k or 27k. Delta should also be at 35k.
Some additional options to consider:
https://www.travelcodex.com/award-se...airport_to=NRT