You're forgetting that there are reasons that some characters have NO PSAs.
The Alloys have way too many limits and cannot do several things.
Also, trying to port anything over those guys will freeze the game.
Not to mention compatibility issues with stages.
Also, G&W has only 1 costume and
NO TEXTURES, and trying to change that without hardcore .rel editing will freeze the game.
And even then, only 1 costume.
Unless you have a USB Gecko and a lot of time, you can use this to help.
http://anonym.to/?http://opensa.dantarion.com/wiki/Instance_SlotsGood Luck.