SK450 quad copter option parts.

This is my take on Hobby kings SK450 frames. We got 2 plug and fly Turnigy SK450 quads while they had there big sale. For the price is is a good quad. We ordered them as the sale price was less then the electronics by them selves. I was at home sick and could not do much out side of tinker with my new toy. I did force some testing in to get things set.
As I sat there and fiddled with my quad I had some ideas. I sat down with calipers and hex wrenches in hand I set out to map the important hole placements. In the end I have a few options to pick from. The bottom frame in standard and extended style. Plus top frame / flight controller mount in 2 styles, vertical and slanted damping. The vertical style should work with both gimbal dampers or earplugs. The slanted (45d) is for earplug dampers. I have also included a dxf file (in inches) for anyone who wants to cnc or laser cut a set.
I am early in the design but it helps to get input. This is all prototype form untested so think of that before jumping in. I will be adding more goodies in for addons as I keep going. One planed setup is retractable landing gear for ap.
Thanks go to hobbyking and turnigy for this nice quad to spark my creativity.