I think the going price is about $50. Ive sold a couple for that and would sell a couple more if needed.
I've been emailed a bunch of time over the years asking for that part. Depending on the condition $30-50. I'll probably remove mine restore it and sell it since I'll be making one to accommodate a rack and pinion.
I didn't catch the part about him wanting to make some, people want the OE ones and they'll pay money for those. There's already a member making cross members. http://mmb.maverick.to/showthread.php?t=79054