Random weekend question: costume drama

Okay, here’s the obligatory Halloween-themed random weekend question: if resources and logistics were no object, what manga character would you emulate for your costume? While it seems fairly easy, I’d probably go with Osamu Tezuka’s Black Jack. Now, I know you’re probably thinking that’s fairly simple — a trench coat, a wig, a few scars drawn on with an eyebrow pencil, and you’re finished. But that coat would take some wicked tailoring, and I’d want the whole armory of surgical tools in the lining, just for the effect.