[redshift]

"My goal here was to make my Emaxx bullet-proof, maintenance free and something that would rarely need to be on the bench."

Welcome to the forum. A bulletproof Maxx is a tall order, especially the 3906. The 3905 is much better in some respects, but about the same in a few other areas.

The 1350 is definitely too low, but you'll have no issues with "overpulling" your lipos with that motor, if I had to guess, that motor will pull a maximum of 50-60 amps, well within almost any decent lipo's discharge capabilities. A bl motor will only use what it 'needs', whereas a brushed motor will try to take whatever you throw at it in most cases.

The 2250 is too high for use on 4S IMO, (not sure what you have for lipos) but proper gearing will make it useable.

Don't feel bad, you can unload whatever you don't end up using here.

See my 3906 mute in my sig for some ideas.