Need recommendation for brushless combo

[rnetbmet]

It's gonna get cold up here pretty soon, so I'll be racing this indoors until spring on small track. It's gonna take me a while to get a handle on the power, so I'll probably be beatin' the hell out of it. I think I've beefed it up pretty good, but I'm still not sure about the motor mount (haven't got it yet - wrong part was sent to me). Is the G-maxx mount enough or do I need to add more support for this motor?