Thanks for the advice.
I'm mostly familiar with the lower Chesapeake below Deltaville and Hampton Rhoads. The new Boat has autopilot a C80 chart plotter and radar. No AIS. I have AIS and an Axiom display on my current boat (for sale), and I love it. I'd like to add AIS but my dealer said to upgrade to AIS and an Axiom display I'd have to also upgrade to digital radar. So I'll stick with what the boat has now for the time being.
I was thinking about renting a life raft. I will install an EBIRB.
Raymarine C80 Manuals
Raymarine C80 Pdf User Manuals. View online or download Raymarine C80 Installation Manual

See page 181 -- I believe you can connect an AIS unit.
I'd recommend a CLASS B AIS (it makes a big difference when they can see you too). You can get an automatic spliter for your VHF antenna, you don't need a separate antenna for the AIS (unless you go with a Type A, which you'll not do).
As Kings Gambit points out, I'd sail around Newport for a bit, get used to the boat and gear before I headed on out and south. Block Island, is worth a trip. Newport itself is a lot fun -- but if it's early in the Spring, a lot of places might not be open yet.
How early in the Spring?
Steve