Hi all, Thinking of building a 6M H-Frame. Looking for 2” OD aluminum mast, 21 to 24’ long, 3/16 to ¼” wall. Anyone have a good resource for this kind of material? Seems everywhere I see it in the ham retailers, is that shipping limitations keep them from selling it longer than 6 or 12’ Any help or direction appreciated. 73 Mike- KM0T