What concerns??? How about SALT SALT and MORE SALT! You MUST wash your boat and trailer down after each use in the salt water. I recommend using a soap spray followed by a fresh water rinse. And flush both main and kicker motor with fresh water for 3 minutes. Saltwater is very cruel to boats and if you don't take good care of your boat after it's in the saltwater it won't be long before it falls apart.
Be very careful motoring around the Sound. Unlike freshwater, there are any number of things that can kill you such as semi-submerged logs and giant freighters and barges. Also, strongly consider getting a GPS for those mornings when fog rolls in and you can't see 50 feet in front of you. Don't rely on just a compass to get back home.
I'm sure there's more that other people will come up with. Congrats on your new boat. You're going to have a blast and catch lots of salmon this fall!