So, I'm creating a sort of "hack" for dungeon world as dungeon world did for apocalypse world. In anycase it's called Crystal World and it focuses on emulating final fantasy in a tabletop game I know there have been several attempts over the years using other systems that did not go well. I am hopeful though about this system since battle is arbitrary and it has a very easy system to learn. ANYWAY that's not what this topic is about. I am planning on basically recreating dungeon world's design of the book, so my question is what are the sizes and margins for dungeon world?

On another note, I'm confused about multiclassing in dungeon world. It states that when you multiclass "you get to choose any move your level or lower" (pg 29). However on the same page in the margin it states that you choose a move from 1 level lower than your current class. This is also brought up on page 346 which states "is why the multiclass moves
act as one level lower, so that each class’s niche is somewhat protected"

Am I just completely missing something? It seems like the book is contradicting itself.
Preemptive- thanks for the response!

I know you can reverse engineer etc etc. But really, it would do good to allow the GM into the meta game to allow him to make his own classes, or atleast give guidelines... or does something like this already exist and I am just blind?

Tonight I whipped up this character sheet in excel. It should be easy for the community to develop classes with this hopefully . Anyway, cheers !

https://www.dropbox.com/s/vdmdz1j3yykpvik/Dungeon%20World%20Character%20Sheet.xlsx