We have added the Grayson Hobby MicroJet Combo to our Power Gear catalog.  This set up is LIGHT people.  It's a nice addition to any of our Quick Builds, and makes for a great "Park Jet" set up.  The plane stays light, around 12 ounces and floats like a leaf, but still has 1 - 1 power that will let you go straight up like a rocket. 

It comes with the ESC, motor, connectors, mount, etc, all the stuff you expect from Grayson's excellent combos.  You still use the standard 6 x 4 APC prop, so you should be all set.  What is really great is that you can save a few bucks on the combo (its only $35) with a smaller battery (1100mAh) so your whole power setup is very budget friendly. 

If you want a real rocket for your Quick Build, we say go with the Park Jet motor.  Its still pretty light, but it will haul the mail on your model.  So now, you have a bit more of a choice.  Enjoy.