may not be worth it but doubt the OEM fork (with .833 steerer) is any gem, if you have a good Tange fork that fit...especially all chrome, you're ahead of this game.
used to be a PC-er would blast the frame as part of the coating package deal. and if they used sand or other strong media that takes care of the chrome, meaning it's all gone!
I might just keep it cosmetically as-is since it's more interesting and you keep the historical trail intact...but up to you of course.