So Mike, when are you gonna give up and re-forge a standard cross pein hammer head round??

  Seems like all you'd have to do is anchor a couple of iron blocks on the anvil and lay the hot head across it,
  then wallop a handled swage (need a second guy here) with a sledge, to bend the head round. Probably take a couple/3 heats.
  Then of course the eye would have to be drifted back out,
after the assault heehe...

It might be a little short compared to the old ones, but it'd do the job.

  Need to borrow a large, handled, top swage?

Or just show up at my door. It'd take some time but we'd figure something out. ;)
     yours Scott