I'm a lefty and use Crimson Trace grips, no problems. Ammo, Gold Dot short barrel. The hammer can be bobed or replaced. Maybe S&W still
has them or Midway, Brownells, Gunbroker, you may have to have it "fitted" by a gunsmith. Another choice is a 3 inch 640 or 642 little hard to find, but good shooters. I like your choice of a three inch J frame.
S&W made a limited run of 2 1/2" J frames, last year, that would work too and are easier to find.
Good luck finding one that will work for your daugther.