I would go with the Honda 50 if you can find a decent one. What a machine, half the country would have never gone anywhere in the 70's and 80's if it wasn't for the Honda 50. Reliable, economical, easy to mount step thru, height no problem, carry 3 in emergency such as home from disco (or even bigger emergency,, to the disco!)... serious kudos from other members of two wheel fraternity that know their stuff. Ah yes.. always preferred the red and white one, Honda 70 will have a little more power for a big frame.
...ok, seriously, I think a 25 mile round trip commute would be a bit much on a recon moped that will only do about 45mph, I would try and get on a 125cc or bigger.