Bases?

Certainly. All bases I could find have been transported over. Basically, that includes everything with a bunch of tile entities (machines, chests, carpenter's blocks, etc) and anything that looked man-made from the sky (rectangles, other patterns, etc). The only issue is that instead of copying each base to a new world file, I deleted all the terrain from the world except the bases.

In addition to this, I made the worldborder smaller. This results in some bases falling outside the new world border. What I have to do is find all the bases outside the new border and move them inside so players can get to them.