Well, i have to say maintain this much of tank is really not a dream.
Imagine the water changes, maintain plant growth, cleaning tubes and glasses weekly, maintain filters, trimming etc, daily ferts, feeding....
I just trimmed our 240P HC iwagumi tank today and just this simple task taken 4 hours.
With trimming, net the leaf and 2 water changes.

just to keep in top shape.
Amazing what the ADA team does every week to keep their tanks and equipments in top shape. Maybe this not sound that hard, but this is an amazing effort, even if they have a group of people who dedicated to this.