Online alarm clock for 1:01 am
Finish packing the clearing gear and head off once your 1:01 am alarm sounds for the drive to Lindis Pass. That leaves 59 minutes before 2:00 am, enough time to check the forecast, secure loose equipment and confirm the planned access point without stretching the departure into the next hour.
Your departure depends on the alarm remaining able to run while you finish those last jobs. Set 1:01 am, check that the sound is audible, then keep the browser active and the phone awake. The Lindis Pass clearing trip could start late because this alarm will not sound after the page is closed or the phone has gone to sleep. If timing matters for meeting the road crew, use a separate alarm on your phone or clock as a backup.
Leaving for alpine work in the middle of the night calls for something practical rather than a heavy meal. Before 1:01 am, have water and a light, familiar snack that can be finished without delaying the load-up. Save a large breakfast and very hot drinks for a planned stop, where they will not compete with checking straps, maps and road conditions. Pack extra water within reach for the journey across the high country.