Alright hell, I ordered it. I'd be between an XL and a 2X but went for the 2X because I have really broad shoulders and that's always the catch point with manufactured costumes (or driving suits, flight suits, anything with me really).

I also found a vendor listing with free returns although it's $5 more than another of their listings, but I'll take the insurance. So in a couple of weeks I'll see how it goes.