Start by checking our classifieds on board.
Then there are some companies that sell new or reproduced like Chevyduty.com and lmctruck.com. There are others, not promoting either one.
Another great way is e-bay, drop a bid for one.
Not sure what you wanted from your thread, are you asking folks here if they have some or what.
How many salvage yards are around your area? Some weekend trips either east of south of our area should get pay dirt.