SSE Custom children?

[ChewNTobacca]

I'm wondering how to go about making custom children. I've started on a mod that places my family as NPCs and followers. Normal adults are a breeze to modify appearance, give new hair styles, etc., but I'm stuck on the kids. I've got 2 boys, one 8 and one 10, with braids to their knees, and want to give them appropriate hair and make them look less like claymation.

 

I've tried making a new race and all new head parts, but can't seem to make the pieces fit together properly. I can make the kids just fine, but when I give them a new custom hairdo it doesn't match their head. I'm starting to wonder if it's possible with creation kit, NifSkope, and vanilla resources, or do I have to install some playable children mod and export a racemenu preset?

 

Thanks for any advice,

Chew