As mentioned, just above the green dot will be the best angle/range target. If they both stop, begin a gentle decent and get your buddy to find the nearest airport, straight road, open field, flat water, whatever.
Remember the Hudson!
As a further guide, if you can see a runway, you can land on it, provided it never goes much below the middle of your windscreen!
In the final stages of the approach, you can afford to be much higher than you would think possible. With gear down and 40 flap and no power at 140 kts, you will lose 1200-1400' a mile depending on weight. So get in close, make final configuration at about one mile and around 1300' but be ready to pull up hard at 200' to reduce the RoD. No harm in using speed brakes if the RoD reduces too much.
Keep your hand away from the Thrust levers! Keep it on the Speed Brakes.
Keep praying!