I got my wig for Haruhi from Amphigory and it is practically perfect. That's a pretty respected site, so is CosWorx. You might wanna check there.
Or eBay. Always. xD
KFC, don't give up! We need a Chiyo for our skit. :3
And Sugarlat, just because a character doesn't necessarily wear makeup, doesn't mean that the one cosplaying them doesn't have to. Actually, to look younger, someone older basically MUST wear makeup. XD Seriously, makeup enhances a costume so much.