SuperTen Four II help needed hooking the 2 speed clutch bell to the motor

[crispy]

Hi, I'm putting together a SuperTen four stroke. I have everything i need - FS26 motor, flywheel, engine mounts and the 2 Speed transmission. One problem though - I cant find a suitable pilot shaft to mount the 2 speed clutch bell onto the motor (its the bigger size crankshaft thread diameter then a regular 2 stroke motor).

Can anyone suggest a source for a pilot shaft which works, or if someone has the Four II superten manual can ID the part number for the shaft, I'd be very grateful!

Thanks

Rich