Although I sold the extra mast I had, my fabricator saved the specs and will make up them up for me.  The price, $75 USD, with shipping being paid by the buyer, is the same.  By the way, I believe they're made from 11 gauge steel.
I've had several of you express an interest.  Please email me at 
jpriceaz@aol.com if you're still interested.
Best regards,
Jim