Cool. For $125 the new steerer is the way to go. Problem solved!

I'd probably rattlecan the fork myself. Surly's are supposed to be utilitarian anyway, I think.
I checked and 1 1/8" threaded headsets are still pretty easy to come by. Ritchey sells one for ~ $15, or splurge on a Chris King for 10x that. There's a Tange in between.