Hi Fish On,
I believe a boat that size is fine in Barnegat Bay and the Rivers and tributaries feeding it.
Be careful though? Are the engines rated for saltwater? Most people will say yes but I destroyed a small outboard because it was not in reality. The worst is you will have to flush the engine very good and check under the cowling to make sure saltwater did not get under there. Don't let people BS you. Call you manufacturer if you have not already. If they say it is OK for brackish water, do not settle for that answer.
If so, I can help with some launching areas.
Oh, I hope you pick a spot away from channels as courtesy is dead in NJ waters. I can tell you recent stories ...
Thanks,
Ed