To get a clean start I made this fresh post.. Anyone with a ROHN tower feel free to chime in. ROHN 25 non-guyed. Total height of 30' and then the 5' base section down in concrete. Can't decide on AG3 rocket top with 2" ID top mast outer sleeve or some other type of top. Going with proposed Yaesu G450a rotor for it. Maco 103c 3.99 sq ft. or Sirio 27-3 3 element beam with my A99 on top of that. Getting conflicting suggestions on whether to use a bearing/bushing or just run the AG3 rocket top with a 2" mast pipe poking up.. Cost of the 30' with AG3 is $570 and $170 s/h.. NormsFab rotor shelf is $40 and $20 s/h..