Mamba Max Pro in B4?

[mali]

I have a FT B4 kit that has been built and been left to sit on top of the wardrobe for nearly a year while i have been buying all the other bits to get it running.

I need an esc and motor but really dont have a clue where to start. i want it to be race worthy although it wont be for a while as this is my first r/c

Im after something faster than a rtr equivalent, pref with reverse, and most important and the thing that has stopped me buying anything as yet, is it must fit under a proline vortex shell as on the B4.1

Ive been looking at the Mamba Max Pro as it seems ideal, but unsure if it will fit under the shell.

I have no budget really but a sensible cap would be £200 although if something more expensive but is worth it is mentioned ............. then maybe

many thanks

mali