Need locations of places in northern NJ vacinity that sell
used/salvaged kitchen appliances and cabinets

Habitat for Humanity runs several "Re-Stores" which accept donations
of salvaged but usable housing materials, which they either use in
building homes or offer for sale to the public. The only one I could
quickly find in New Jersey is in Tom's River:

http://mywebpages.comcast.net/nohfh/restore.htm

Good luck!