Well, I took it out for a test run. It's already pretty much dark outside and the camera batteries weren't charged enough.. so I just went ahead and did it anyway.
I ran it on one stock Traxxas 6 cell NiMH battery.. it had good power, I think I need to mess with some settings because it cogged a little a few times. It would do a tame wheelie, it was over-all VERY controllable and still had plenty of speed. I would guess right around the stock 30 with one battery. The battery got really warm.. probably because it's not capable of keeping up with the MM system, and probably some of my settings. I'm going to tune it down a little, get both batteries charged up and go for a run with both in series and see how wild it is.