Minimun amp rating of and esc for 2s & CMS7700

Aha, and now we get to the point! Discussion could have been much more accurate if you had mentioned you were running this setup in a villain to start with. There can still be no definitive answer as to what amps you'll be pulling, but a 60-70A ESC might very well be OK, if it's decent quality. Cooling won't be so much of an issue, and load should be relatively low compared to 1/10th off-road.

J.