Striper fishing is NOT read hot in the highlands area....
I fish there 3-4 times a week and know a good number of elite charter captains and party boat captains, none are doing well with consistent action. There are a few good trips here and there but by far this is a horrible season for us up here. I have not had limits on most trips, near limits but that is unusual for my boat. I would launch further south, fish are off manasquan and barneget. I'm running on a friends boat the next two mornings for bass out of manasquan to save on gas.
Also, the ocean fishing bite is early, by 9:30am its over, if you cannot get there that early, fish in the pm, after 3pm, the fishing is usually dead in between.
As for marinas, I'd launch from the atlantic highlands, it can accommodate many boats at once and has no problems with tides, leonardo has problems with some tides and for boats over 25' there is not a ton of space when launching. I've launched many boats over the years from both and I would take the atlantic highlands any day over leonardo.
Honestly I'd save your gas and fish south a little for now. Good luck!