RE: Vmar Easy 3D Conversion
I used an [link=http://www.hobby-lobby.com/spinners.htm]HLHS225 2-1/4" Spinner[/link] from Hobby Lobby that fit well over my [link=http://www.hobby-lobby.com/elecprop.htm]APC 14x7[/link] e-prop and it was easy to install.
I cut out the pre-drawn area in the cowl to provide cooling air flow past the motor and into the fuselage area.