I see you're in Ryan, OK. That's a ways from Canadian County if I remember correctly, but there are a couple of places here you might want to try. First is Calumet Industries which is about a 1/2 mile East of I-40 exit 115 on route 66. Their number is (405) 893-2636. You'd be best off talking to Roger Fees there, he has all sorts of old military and industrial junk laying around inside and out. Also Stroh's Surplus, which is on the south side of Okarche. Their number is (405) 263-4888. Both would be worth calling to see if they have something laying around.
Good Luck