FWIW, I am in the process of doing an electric conversion build of the Commander (AirMaster) 50cc from the World Models. It is a bit F3A ish and a little less IMAC. But it's big, bigger than 2m
http://www.airborne-models.com/html/...?ProductID=158

I decided to go with 10s setup (so I can use 5s packs), a Hacker Q80-7m and Mezon 130 ESC.
Of course, it hasn't left the ground yet, but the numbers and eCalc seem to think it will fly.

For high pole count motors, I would go Jeti (not a fan of CC)