I bought the roller prior to leaving for Hong Kong last October and finally got around to finishing up the conversion. I use Castle's conversion kit along wiht my TeknoRC neu 1515 1Y.
Here are the pictures:
Before the conversion:
CC conversion kit:
After the clean up:
I used my spare 48T lightened Kyosho spur gear:
Mounted the motor mount:
I drilled and tapped the ESC mount. I'll have one made better when I go back to the ship.