We use the OFNA vented bells and they work excellent with the M2C kits.
10399 for the 13T cb, or 10400 if you find the need to go up 1 tooth on that badass motor

Thanks...I'll order one and try it out and see if there is much of a difference when comparing that clutch bell to the Kyosho brand.
BTW: I took several photos and was wondering if this is normal to have to use this many shims in order to take away the massive play the clutch bell had...I also notice that the Kyosho Bell is quite a bit larger than the M2C flywheel where the clutch shoes are held and this is also the lowest the Kyosho clutch bell will sit...maybe it is normal: