How is a question of looking around ALOT until you find someone with them instock (rc boat places is a good bet). Wiring it up is simple enough, you may just have to direct wire it or change the plugs on the motor or esc so they both match in size, no biggie really.
Does anyone know the size on the back of the motor? 5.5mm? I just hope a 1940 will do the job with no problem. Dont want to waste $300 on a motor that will burn up, and it will be from FD! o no.