Quick question- are you looking for a pre-styled wig, or a wig that you want to style yourself?
I can find no prestyled wigs for this specific version of Duck (lots for Princess Tutu) but if you're going to do your own styling (which I think you are) I would recommend getting a short wig and then sewing in wefts for the braids.
This picture of duck shows her hair as being very orange, but I know some cosplayers prefer a more muted pink/salmon color for her like this wig
Unfortunately, using Ebay for this wig may not work, because the color is so odd, and you will most definitely need wefts.
I would suggest to you arda's A022 (peach)
as that's the closest thing I can think of that you can get without dyeing a white wig. You could get one of the short wigs (lulu
, or the magnum long
) and then either get a pony tail extension
to harvest wefts from for your braid
If you're eyes are set on ebay, all I can suggest to you is to get a white
wig and extensions and dye those suckers with sharpies to get your desired shades.