Floods Road: https://www.strava.com/activities/492911911
Choose a good climb. There's a trade off between getting it done quickly on a steep hill and it being hard; compared to an easy climb and it being longer and taking more time. Choose a climb that suits you, my ideal would be mostly seated with the occasional pinch to give you some standing. Be careful with the descent, late at night it gets hard with wildlife, and if it rains it become extra hard.
If possible, choose somewhere without traffic. Ours had none during the night but was quite busy during the day. This was tricky as it was quite a narrow road.
Invite as many people as you can. Sherpas are awesome and will help you through. Rely on them to roll laps, make food, set up camp, get food, etc. You will make it far far harder for yourself if you try to do it solo.