I can't reply in GM Faye's post but want to say thanks. I've been working on a similar list of upgrade items but the ones posted today look nicer than mine. For anyone who hasn't seen it look in the English forum under "tips and tricks for the game start" and read the guides. Faye listed the items you will need for each lvl to upgrade so you can hunt for the items before you reach the level to unlock it. This is going to help a lot of players.