Hi Peter C.
Can you explain why your attempt with the Odin failed and why you think it will fail on the JMT10? I have an Odin that is under repair but I'll compare their BB's.
The motor will not fit the 5mm under the frame is to big it will foul on the motor case the only option is to reposition the bb tube cut and weld or fit a front hub conversion
The factory versions use the newer m 625 the motor fits in a cradle