Fisher Price Motor 2011 KOP with Cap and Sun Gear for AM Planetary (am-0823)

I need this fisher price motor in order to use the fisher price gearbox that came with the kit of parts. Unfortunately, the Andy Mark website is out of stock, in the meantime I was hoping someone knew of another place where this motor can be purchased

Here is a link to the motor: http://www.andymark.com/product-p/am-0823.htm

There is also a version of the motor without the cap for mounting, any information on that standalone would still be helpful.

Thanks and good luck building.