If I'm reading you correctly, the issue is that the crown race is overhanging the crown front and back.

If that's the issue, there isn't one.

Historically steel fork crowns were made narrow enough for the races to overhang. This made it easier to knock them off with a U-shaped tool. This is the way things were for almost a century. Over the last few decades, crowns got larger, first to accommodate suspension forks, and later carbon forks, rendering the tools that push them out from below obsolete.

All that matters is that the crown seat diameter is adequate to make a press fit except for the split crown centering cones used with some cartridge bearing headsets.