So I'm preparing an Okumura Yukio cosplay! The problem is, I can't find a good pattern for his coat! I've looked everywhere, and I can't find an ankle-length, double-breasted, standing high collar fold (?) trench coat. At all. I've found products that have everything except the ankle length part, but never any patterns for them. Could you guys give some insight?
Stylized Drawing Version
Any help would be greatly appreciated.