We did a sail last year on a Compac 23 from RI to Cheasapeake. Couple of suggestions - first is if you are coming to NY down LI Sound be aware that the tide running in the sound is strong and will affect your progress if you are sailing against it. (Not as bad a Woods Hole) but it is there.
There were a couple of beautiful small marinas along the CT & NJ coast that we stopped into - can give you a list if interested
We laid up just north of Laguardia Airport at a small private marina which was actually more of a drinking club with a few boats - the people were absolutely great but airport noisy (wouldn't recommend it) - go to a real marina
If you have never done it, sailing down the east river in the early morning gives you great views but look out for water taxis, heavy commercial traffic and you want to be aware of Hell Gate. The tide dictates when you travel - we went with the begining of the out-going tide.