We have a Junkyard that deals in all the scrap from the manufacturing facilities in our area I pick up alot of sweet stuff there gotta spend alot of time though. you need to find a scrapyard like that.
I'll keep my eyes peeled next time I go hunting I aint promising anything I got the only thing like that the time I got that one. If I get one they charge me for that stuff by the pound I usually buy a sh#tload of stuff when I go though. Last time I got 170.00 dollars worth of stuff at about 25 cents a pound.