Honestly, get a different fork.
E.g. https://www.spacycles.co.uk/m21b0s29p4877/SPA-CYCLES-Carbon-Gravel-Fork
Ordinarily, I think you have a point Ed!
However I stumbled across Old Man Mountain. It looks like they use a proprietary thru axle (a bit like those fancy carbon rear bikepacking racks?) and a fixing bracket halfway up the fork leg. Expensive, but cheaper than a fork.
@Ben689908 started
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Honestly, get a different fork.
E.g. https://www.spacycles.co.uk/m21b0s29p4877/SPA-CYCLES-Carbon-Gravel-Fork