I got a Original E4 FS/RS Dual Steering Crank. (NOT 09)

I miss matched the parts to get the correct flex I wanted.
Stiff Main Plate and Soft Top Deck. (But the Motor bay remains the same)

I have been Running a Ballistic Novak Motor. (Very Short Can)
I know I can fit the old style Novak Motor also. (Biggest Can i was able to fit)

Now the problem is, i know that i cannot fit any of the speed passion motors, and pretty much all sportsman style Fiago motors won't fit.

What motors are known to fit ?
I am interested in X-12 LRP motors. NOT the X-11
Does anyone know if they fit comfortably ?

-Pearl