From the factory, you would not have had an outside rear-view mirror, which is why I have the repro swan-neck mirrors on mine; I didn't want to dick with pulling the original hinge pin.
Shouldn't that have a grooved bumper and ribbed guard?
Should have the flat taillpipe.
The #1 problem? It's not in my garage
There's a strong possibility that it would have originally had a crank start bracket on the bumper (and corresponding apron hole).
Should have round horn grilles; can't recall if it should be one or two - I think just one.