Landing Gear for Airliners Airplanes with Landing Gear Free 3D model

This 3D model was originally created with Sketchup 8 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 I guess because of the example. This NGX-1A, by AirbusA330, was without gear, but I gave it so. Also, to the author, could you please add flaps/speedbrakes to this? It will REALLY improve this. I tryed to imitate, but as you see I failed ;\ . Please add. So here. There are +'s so you could see where is the center. I tended to make them so you can measure where to put everything. THOSE ARE GROUPS AND THE FOLLOWING SHOULD BE DELETED {I'alk about +'s}!!! Thanx to Sletch2003 for the Airbus A380 which contained the wheels and AirbusA330 {saying again} for the NGX-1A.