My wife is running the New York City Marathon this year and we are taking our first trip to the city along with my son (17) and daughter (13). We arrive November 1 and leave November 4 - it will be a short trip but the kids will be missing 2 days of school. We don't have specific plans yet but I imagine a ferry tour will be on the agenda along with some of the bigger attractions (Statue of Liberty, Empire State Building, Grand Central, etc.) I am looking for advice on what focal lengths I should take to capture our trip.
For cameras I have: 7D, EOS M (and EF adapter), and a S100.
My lenses are: EF 70-200mm 2.8 IS II, EF 50mm 1.8, EF-S 18-135mm, EF-M 22mm
With my son in college next year, we are on a pretty tight budget but I have considered purchasing one of the following: EF-M 18-55mm, EF-M 11-22mm, or Sigma 50mm 1.4.
I am leaning heavily toward leaving my 7D and 70-200 at home. If I were to rely solely on the M and the S100, do I need 2 or 3 lenses and what should they be? Any other advice also appreciated.