Def a good read. But it is just 1 persons views.
I know he tried to make it as general as possible and point out options. But I think you can still set up a decent budget tank for closer to the $30/gallon range. $50-60 seems high. Also not the AIO tanks he mentioned do not include sand, rock, etc either.
Sorry for the hack. That 10gallon rock work is amazing. Looks WAY bigger. Kinda makes me want to build a nano.