I walked it in two phases, Batsto to the Mullica River Campground and back, then Atsion to the camp and back. I used the resulting GPX tracks (2 per segment) to map the trail on openstreetmap.org. You can download the resulting, cleaned-up track as a GPX file easily from hiking.waymarkedtrails.org (which takes openstreetmap.org hiking route data and presents it in a nice form).
I also put up (or finished up) the Batsto Lake trails (3 loops), Toms Pond trail (Batsto), as well as all the marked trails at Bass River State Forest. Franklin Parker Preserve trails are there too.
There is a companion sites for mountain bike trails (and other kinds). Here are the Wharton Batsto-area mountail bike (MTB) trails: https://mtb.waymarkedtrails.org/#?map=15!39.6572!-74.6481
Click in the lower right corner on Routes to see route details. Unfortunately, the site does not support color boxes for bike trails, only hiking trails. The only other thing I don't like about it is that they only give trail lengths in kilometers, not miles.
If anyone has corrections or additions, you can register at openstreetmap.org and do the edits yourself (follow the rules, though - no copying proprietary data such as from Google maps). Or I'll be happy to make fixes for you.