Hi Randy, I went through this just last winter. Norm, of Norm's Fab, built one for me to my specs. He did a fantastic job. That bracket is holding my tower [with lots of aluminum] absolutely solid. He's at www.normsfab.com. I am copying Norm to let him know I referred you. 73, Jim Idelson K1IR email k1ir at designet.com web http://www.k1ir.com