I got tired of playing through the vault over and over, so I looked at various character saves here. Nearly all are adult characters, and using an adult character save yields some kind of conflict with the race selector - you cannot select many of the child races added by Children of the Wasteland. For example, if you want an African or Caucasian Child, you're out of luck. You could select Redhead Child and try to massage it into something you like, but it's not the same. I had to play through the vault as a child to get the child races in the race selector at the end.

So this is a plain install of COTW. You can find that here:
http://fallout3.nexusmods.com/mods/1903/?

I used a bog-standard install of Fallout 3, which to me means all the DLCs and the latest patch, along with DARNUI. I then installed just COTW from the link above. There's NOTHING else, which means it's good to go for anything else you want. The only thing you miss are mods that add stuff into the vault startup, like that mod that adds weapons and armor to the table in your room when Amata awakes you. While I liked that mod, I felt the loss of that was worth making the save more generic. You don't NEED anything, so you shouldn't have any conflicts except things known to conflict with COTW.

When you go to the race selector, you'll notice your character doesn't appear. That's normal for COTW when playing as a child. Pull up the console and enter "player.setscale 1.25" to see your character, then enter "player.setscale 1" when you're done to get back to the proper size. If you want to play a slightly taller child, try 1.1 instead of 1. If you want to be a real shorty, try 0.9 - you'll be looking up to everyone, even Bumble!

Anywho, use this character as you see fit. I don't really care how... no need to even thank me if you use it. I did this mostly for myself, and if you benefit as well, all the better. :)

Mods I recommend
=================
2 Perks in 1 Level: http://fallout3.nexusmods.com/mods/18960/?
CREBSOR: http://fallout3.nexusmods.com/mods/6240/?
Sprint Mod: http://fallout3.nexusmods.com/mods/1854/?
Child Armor: http://fallout3.nexusmods.com/mods/14759/?
Note that child armor was NOT installed when making this save, so it's not REQUIRED.
If you like a BIG expansive home, I recommend Tcho's Vault 101 Sealed Wing mod:
http://fallout3.nexusmods.com/mods/2454/?
If you like a small compact home, I recommend the MiniHideout:
http://fallout3.nexusmods.com/mods/6394/?
And of course, you can't play FO3 without SCC:
http://fallout3.nexusmods.com/mods/2399/?