"Rapunzel" wigs for yo-SDs?

Oh they do exist,only I don`t know if this one ships overseas.

(Special Long Size)
http://ekizo.mandarake.co.jp/shop/ja/item_s-486080.html

You may want to look for Long Unoa Wigs, since Unoas have the same headsize as Yo`s.

 

Cancan Jseries sells a similar wig. It might be easier/cheaper to get from there...

http://www.cancan-jseries.net/product_info.php?cPath=26_56&products_id=171

 

Mandarake ship overseas with no problem, with the usual EMS charges. You pay in yen though Paypal or credit cards.

This is a search for the "special long straight" (スペシャルロングストレー&#12488 hairstyle through their English language website: http://bit.ly/f978Ab

I'm afraid the Himekazura wigs aren't indexed by their English wig style names, only the Japanese, so just copy and paste the Japanese names to the search box and look for the color you want in S (6-7") size.

Other wig styles that you might like:
ロングストレート Long straight (watch out because this search will also turn up semi long straight wigs, which are shorter)
スーパーロングストレート Super-long straight
ロングウェーブ Long wave
ロングストレートツーテール Long straight two-tail
ヴィーナスウェーブ Venus wave
姫カット Hime cut/ Princess cut

As for colors, you can use Google Translate for help with the Japanese, but I think you'll want some of these:

ベージュ beige
ベージュブロンド beige blond
ハニーイエロー honey yellow
イエローゴールド yellow gold
マンゴー mango
プラチナブロンド platinum blonde

Hope this helps