Yesh! That is ugly!
Hard to see which way it wants to fall. On one hand: a lot of mass on the bottom, but little leverage, wants to fall towards the road; on the other hand a little mass, but lots of leverage up high and a good lean angle wants to take it over the bank.
If it was me, I'd put a cable up high, and run the cable through a pulley anchored across the road with pulling vehicle a safe distance away. Sometimes when the natural fall is unknown, or you calculate (guess) it wrong, you have to watch the kerf (the opening the saw creates) as you do your back cut. If it pinches on the saw then you know it wants to go over the bank. Use wedges so it releases pinch and cut up to the hinge (but not through!). Then get out of there and pull it over. (Note: Apply a little tension, but not too much and/or don't pull when cutting or this is when barber chair danger can occur.)