After looking at the last pictures you posted I sure hope your being careful because I could see how having the pole cut more than half for this project could turn really ugly.. real fast. Once you start cutting the vines, that hose is not going to hold the weight of the dish because being top heavy its going to start leaning and will break the remaining metal... by cutting the pole more than half way you've created yourself a danger to you and anyone helping you.
And having the 120 volt power line makes matters worse...you need to disable that circuit at the breaker box before the dish falls and takes it down, you don't want the circuit to short out.
In my opinion the only safe thing to do is to remove the feedhorn unit, unbolt the dish from the mount and let the pipe and mount drop to the ground. Take some c-clamps and rope and secure the dish from coming down, then cut the other vines dropping the dish, lot easier to handle dish by itself.
Sergei I think you got the same mental picture that I did by looking at those photos. From the very start those vines should have been removed before sawing the pole nearly off. Having not done so and cutting the pole only spells disaster. I whole heartedly agree with all of which you put in your post. Especially: “Take some c-clamps and rope and secure the dish from coming down, then cut the other vines dropping the dish, lot easier to handle dish by itself.”
Olliec I sure hope you have some friends with you in doing this.
Tom