If anyone wants to upgrade this motor's cooling, it's not difficult.
K&S Brass sheet (can't remember the thickness, but thicker is better.)
K&S brass tube, about 1/8".
K&S tubing bender, corresponding size of course.
Soldering equipment (flux, solder, 140W Weller)
Thermal conductive paste, to improve heat transfer between the motor and the new cooler.
This is not in the same boat, but I'm sure you can do something similar to fit.