The part that looks like it has a screw head is from the Tamiya 1/12 Ferrari 312T.
I'm still stuck on the wheel shaped part. I'm guessing a wheel rim with a 6-bolt pattern?
The added pieces are gun barrels from a ship. the center wheel is from a 1/12 race car (it's the back side of the wheel) I have castings of the entire hub if you like, there are several kits used on the wing hub.
I'm not lost just been out of town a lot over the past two weeks interviewing for jobs and stuff. Folks can always email at sneisen@comcast.net if they need to get a hold of me.