I believe the rear bumper is correct. I would guess that the car originally was equipped with the rear-mounted spare and has been upgraded with the sidemounts.
There is a 1933 Super Eight coupe roadster on eBay right now that has standard eight bumpers front and rear, plus it has the standard eight headlights. Figure that one out. Nice car, though. Perhaps it should be the next one brought up so that it can be picked apart. I may have missed some things.
How can you tell those are super 8 headlights? They have V lens which I thought were for super 8s that year. Also could the stabilizer bumper have been an option. I have the Turnquist Packard book and it shows a Super 8 roadster w/o the stabilizers. Also is the radiator incorrect. Shouldn't it be honeycombed?
Otherwise, that 33 looks very nice and correct.