You can get a motor mount from us at TEAM Fcr, you can see pics of the mount here...
You will see a small video as well. I'm afraid that the FD mount would kinda hurd the fins or not be solid when using a finnned designed motor. It also seems to be limited to one motor diameter ! And the motors, don't seem to have a normal diameter when using heatsinks around them. And believe me, the heatsink is a good thing to have, no matter how efficient the motor is ! The motor I have is a Plettenberg HP220 maxximum and sells around 250-300 as well. Its got a built in fan and NEVER overheats. I also have the Quark 125B Monster as an ESC and that is very good as well. It coggs a little bit from a standing start, sometimes. But really nothing to be worried about. A VERY good reference for online brushless equipment would be starluck rc !! www.starluckrc.com
The motor mount is really solid and sells by its own around 45$. You can get the ESC/FAN mount for around 30 by itself. Or do like most of our clients and buy both for 60$ !
Please contact me by email at firstname.lastname@example.org
if you have any questions !