E-Revo set up?

Is it possible/feasable/smart to just slap in the MM/7700 and just spend $180 more to slap in a second one with a y harness, running 2 8000mah 7.4's. This would slice the load in half, stay with in the weight of the original truck since it has 2 industrial motors and is set up to run heavy sub-c cells. I realalize that this would not increase the speed over what one brushless unit would do but it should be reliable, right? Would this unit need a bec eliminator set up, I would think not. Thanks again for the help!