Building a 80m vertical from Rohn 25g sections and need some fibreglass solid rod; 1.5" OD, preferably 1.75" OD, to insulate/isolate the Rohn 25 tower base section. Besides Max-Gain Systems (only have up to 1.5"), where are my choices? A search on fibreglass, fibreglass rod gets me lots of fishing poles! Mike, K5UO, 9H3UO