That one wasn't in the anime I don't think (I read the manga, don't really watch the anime). It was, however, a DVD cover. If it's the one I'm thinking, I made it for my friend
four years ago for our group cosplay and there is only one image of it
. In the end we didn't make it symmetrical like the reference you linked, but did what we thought would make it look best. For hers, I actually used a pattern from the company Suitability that is for Dressage riders (horseback riding for those that don't know what dressage is). It's a double breasted jacket with tails, though if you aren't used to some serious tailoring, it's going to be a tricky pattern to use.