So my friend's comically large 1970s Raleigh Super Grand Prix's fork blade snapped below the fork crown and needs replacing. Unfortunately, it seems impossible to find a fork with a long enough steerer. The bike has a 225mm headtube. The original fork has a 260mm long steerer and has a 27mm crown race. The longest threaded forks I can find are 250mm. Even with a 31mm headset that leaves 6mm short, and thats without the cable hanger for the centerpull brake. I need to do the math but I'm not sure if even a 300mm threadless fork will be enough with the need to make room for the stem.

This is a cheap bike and its not worth spending much money on. Are there any reasonable cost solutions? Unfortunately I already made the mistake of buying a 250mm threaded fork. If cost weren't an object a framebuilder could braze new blades into the existing crown, or we could do a threadless conversion with a 350mm soma fork, but those options are both expensive.

Anyone got any good ideas?