Thank you for responding and apologies for asking further.
Regarding the phosphor bronze top-loading wires, is the diameter 72.5 mm? Was it a typo with 7×2.5mm? The top loading wires are visible on photos showing all the masts, which makes me think they have a wider diameter.
Also, the vertical radiator going up from the inductors on towers 2-5 appear to be a cage of six or eight wires in photos. What is the diameter of the cage of wires? I assume they are also phosphor bronze?
Thanks once again.