If you're going to go full bobber, then yes, I can see a springer seat being a great accent. Have you seen billymac's bobber yet? He doesn't post on here much you you don't see it very often, but definitely worth taking a look... He's got a version of the rear fender you're talking about.
No prob about the light bar, but if you ever do decide...
billymac's 800 bobber: (the rest are
here)
