On the Eastbound side of Rt. 46. Big yard. http://www.parkwayironandmetal.com/
Years back, they used to sell as well as buy; you could go over there on a Saturday morning, root around for stuff, and buy it by the pound. I once got a cast-iron lapping plate for about $10.
I have no idea if they still do that.
Parkway Iron and Metal, Clifton NJ
Parkway Iron and Metal, Clifton NJ
Pete in NJ