Murray, contact Karl at Tasjian Towers: http://www.karltashjian.com/ 73, Joe I am looking for a copy of the manual or installation sheets and = possibly the engineering spec's in case a permit is needed. This is for = a Tri-ex THS471 or THZ471 ( It's hard to read the label). This tower = has no cables or winch at present. I am trying to help a fellow ham = install it properly.