you can get spurious parts as in not genuine, somewhere that stocks spurious parts should sell them, if you go to a shop like road runner or car spares somewhere like that they may be able to get you one, if not those places then try body repair shops etc
to get one off a car would be a complete bitch to do, the welds dont come off easily and even still you would need to kind of hit it then that may lead to it bending an deforming out of shape.
you'll see what i mean if you try and get one off, trust me they dont come off easily, i had to do the same kind of thing with a slam panel on the front of my old EG, after hours of TRYING drill the welds out with all the correct drill bits it just wouldent budge, ended up smashing it off in the end haha