Some of the stands are not much more than three pieces of wood. So, it seems easy enough. Where I get into trouble is having too much perfectionist in me. I'll want to use all of my tools (and tools I don't even own!).

It seems that the taller the stands get, the smaller the top plate is. This makes sense, since you don't want a large speaker sitting too high off the ground on a wobbly stand. If I go down to 16-20", the top plates are larger and that height will probably be fine.