Thanks for the quick response, as i am working on it right now. 

So if i wanted them to have seperate movesets/final smashes, i would need to get BrawlEx?

And then, i look up tutorials if i cant figure it out and just start inserting the characters?

I only have a 1GB SD card, so will i have enough space to use BrawlEX?

Thanks for the help.  So i can put in the Cloud one as "FitIke00" and put Shulk as "FitIke01" and it will work ingame if i choose the corresponding color?  I have one question though.  How would i make them have different movesets? Is the moveset defaultly put into each individual .pcs/.pac by itself?  I thought the "MotionEtc" file decided the movesets; and i can only have one "MotionEtc" file per folder.  Please help me.

Also, will BrawlEX work with custom characters from Project M such as Mewtwo? Like could i put his files into BrawlEX?  Or can i insert any character into it?

I am somewhat skilled at hacking brawl.  The most i can do is putting custom characters in through folders (I am not skilled at BrawlBox and CSS & CSP hacking).  I already have put in 4 or 5 characters in my version of Brawl. (I use Project M as well).  I have a problem though.  I would like to know if it is possible to take up ONE character slot, using TWO custom characters.(In my case, Ike) I am doing this so that i could still keep Marth.  I have Shulk over Marth as of now, but my friend wants to use Marth still.

What i mean by this is:
Can i use this Shulk as one skin: http://forums.kc-mm.com/Gallery/BrawlView.php?Number=203267
And this Cloud as another: http://forums.kc-mm.com/Gallery/BrawlView.php?Number=5371
While this is all on Ike.
Is this possible, and if so, how would i go about this? 
If not possible, is there another Marth import i can put on another character?  Or another Shulk i can put on a character besides Ike?

Thanks in advance.