Minimal GameBase derived class

I am working on creating a minimal gamebase derived class that I can build from. My hope is to create a class that will be the base class for all of my mecha style vehicles and players. I have been looking at ShapeBase and it has more in it than I want and does not match what I want.

Does anyone have any examples of a minimal gamebase derived object that I could work from?

The stuff I am worried about is networking, shape rendering and animation, and simple collision. Eventually I will add hitboxes, physics, and sceneobject based mounting.

Thanks