I've got a spec drawing somewhere and will see if I can scan it at work this week. PM me or send me an email. More than happy to share. A buddy of mine have a sheet metal guy reproduce it for him. If memory serves me right it cost around $150 but was constructed of a heavy gauge metal. If I can't scan it, I can at least take digital pictures of it for anybody interested. I need to get one made for my tent but have not gotten around to it yet.
The actual design is a four-sided pyramid, like the tent. The top of the pyramid is flat with a hole in the center where it is attached onto