Hello Cool Blender People!
So this is my resulting mesh. It has 117 vertices.
And here is a small humble sample which I’ve tested using Unity3D.
I hope you like.
C&C welcome.
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That works really well.
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Thanks @Tobias_Ware, unfortunately I’ve got little problems around the larger diameter. as you can se in the wireframe it’s quite sharp, and If you’ve seen the video you probably have noticed that the pins doesn’t behave quite well, at least they should roll a little more 
I might update the model increasing some verts on that area and the same to the top to ensure that smooth movement.