Cheapest, Yet Speediest BL Combo for the E-Savage?

[rawfuls]

Yes, I know, I'm retarded.
Cheap + Speed =

Anyways, I was going around on youtube, and saw a E-Savage running on a Mamba Max + 5700.
Is it truly possible, and for it to be faster than the 700HO motors from KD?

I do have a 4600 + Mamba Max sitting in the drawer behind me....

And it probably not being to have enough power for a MT, what is the cheapest stuff?
I'm okay with weird china stuff, to some extent.