This really taxed the limits of my 3D modeling skills so I hope you appreciate it :)

A direct replacement for the wooden bulkhead supplied with the kit. I suggest using it in conjunction with this thing to mount the motor:

http://www.thingiverse.com/thing:1527332

*** If you are interested in this aircraft, it can be purchased here: http://www.stoneblueairlines.com/airplanes/air-frames/vas-aircraft/wraith-micro-27-5-wing/vas-wraith-micro-27-5.html