How dead is this fork/is the frame a write-off?

Acquired a beautiful Bob J frame from @Pancake a year and a bit ago, and have been riding it daily ever since. Recently decided to take it to Paris (23mm front clearance was not happy) and it thankfully survived the trip.. all the way until we hit our destination. Literally 2.5km out from the Eiffel I ran into a pothole a riding buddy pointed out too late, and while comforting myself that the tires seemed to have held up, soon noticed the steering felt funny. A couple more cobblestoned streets later and I noticed a noticeable rocking in the cockpit, and sure enough it seemed like the headset was off at a cant. Unscrewed the headset and tried to hand tighten it, and quickly found out it (and the locknut) had stopped being able to tighten up.

My suspicion is that the pothole knocked it off-centre and the subsequent riding around Paris jarred the bike enough to screw up my headset threads.. but that seems like a best case scenario, where I only need to replace the headset and call it a day.

The worst case is that the fork threads themselves are dead.. there is loads of debris I’m seeing but they don’t look too stripped to me (I hear the flat part is normal); does anyone have any idea whether this fork has become unusable? I’m also scared the pothole might have knocked the steerer tube off centre but don’t know how to check this.

If the fork is gone, I’m highly doubting I’m going to find another Reynolds 753 fork and definitely not in this paint scheme; what would people recommend as a replacement - should I chuck on a 531 and call it a day? Will need 13cm of steerer; how do people find replacement threaded forks given the massive disparity in fork tube lengths? Do I just write the frame off if I can’t find a matching fork? Was always meaning to swap the fork so I could run wider tires, but this wasn’t how I wanted it to end!

2 Attachments