LMT 1920 big enough for Rustler or CRT 5.?

[Finnster]

I was looking to get a new motor to run 4s on my Rusty. I like my Neu so much I thinking about just going to a highend motor and skip on the cheapie chinese motor.

Looking at ~$200 max, will a LMT 1920 do well in such a car? Wanting a 10turn (~3130kv) on 4S. I'm seriously considering getting a CRT .5 to replace the Rusty, so I want one that will be good for both. A 1930 is a bit too $$$.

I have a MM left over from the Revo, so I'm not sure a Neu will work, but I've seen some people say the smaller Neus work ok w/ the MM. if so ,which size is better a, 1506 or 1509 (thinking 1509.) Thanks!