I'm very familier with that section. We like to do that hike as an overnight shakedown for our longer AT Trips (Scouts). Did you read the log at Brinks? There's some crazy stuff in there!
An interesting trip on the AT in NJ is to go from High Point to Wawayanda. The terrain is quite varied. It starts on the mountain at HP, decends through farm fields and pastures, goes through a swamp, up another mountain (Pochuck), through another swamp, and then finishes after accending the switchbacks of Wawayanda Mt. There's safe and legal parking on both ends.
Here's a great site that we use to find parking for our AT trips: http://appalachiantrail.rohland.org/