I haven't figured out what my first thing to do to it will be, though.
I wouldn't worry too much about the sissy bar. You and your girl won't ride far on an 883. I would do a remap and pipes, and certainly lose the reflectors.
Seriously though, I wouldn't do a whole lot to it. You'll be looking at bigger bikes before you know it.
Nice looking bike! I love the Sportster Customs. I'm guessing either a backrest for the little lady or new pipes. Enjoy, ride safe, welcome to the family!