"Fibbits, tons of links there!...just what I was hoping for, all those fit the Kids 4? If so that would be great! Thanks all for taking the time to reply and helping me out. :-)"

Yes, all of them can be scaled to fit pretty easily.  It's a matter of scaling the whole figure, then scaling in x, y, z as needed.  Generally it takes only a few minutes to scale.

Sometimes it's best to conform to the figure head then scale.

Other times (I usually do this) it's best to parent to the figure head so you can adjust the x, y, z position as needed.  Make sure to have the head of the figure selected when adding the hair to the scene.