Hey, how would you wire in that delta brushless fan on a mm with a cc-bec on a 2ch. am rx? Im total dumbness with all this stuff. Would it require a 3ch?

The rx will already be at 5v-6v, so you can use a y adaptor where the bec is plugged into. Or plug it into the batt slot.

I personally run 2 40mm fans on my Raze,One blowing inline with the fins on the heatsink and one blowing into the open end of my outrunner... Its running off 2 9v batteries at the moment.. in series. so they are pushing somewhere around 6cfm,