I'm also in the wide-feet group: 11 or 11.5 double wide and endured lots of foot pain for many years riding with toe clips. Switching to SPD pedals helped a lot, but I can understand if that's not necessarily the look you want on a vintage bike. I do have MKS Touring pedals on a couple of bikes and like them a lot--they look just like the old Atom steel cage rat-traps that came on the early 70s Raleigh Super Course, but they're much lighter and smoother. I'm going to try them with Power Straps when it warms up a bit out there. I also just bought a pair of MKS AR-2 quill pedals as they're advertised for wider feet and will try them with chrome half clips.
Neal