I am planning on building a half scale pillar of autumn, with the following dimensions: 650 blocks long, 175 blocks wide, and 200 blocks high. I have not yet started on this, and am only posting this to see how everyone feels about it/ inform you of this. I will only have an opportunity to work on it 1-1.5 hours a day, so progress will be slow-ish. In case you have no idea what the Pillar of Autumn looks like, here it is: