I think that's impossible, because you have to cover only 0.5 mm radius difference and the threads are deeper.
So, you end up with something like an inverted washer.
I suggest the following (maybe easiest) solution:
Use a standard 10mm hollow rear axle for QR and screw on the cones, spacers and nuts of your existing front hub.
Remove / grind / file / dremel the threads at the ends, leaving a 9mm diam. without thread.
Cut the axle to approx 108/110 mm and fix it in the forks with a QR.
Of course you can also take a round file and make the inside of the fork ends 10mm.
Don't make the slots any deeper, otherwise your wheel will be off-center.
You can also look for a standard M9 front axle, but then you also need fitting cones and nuts. Especially cones that suit your bearing cups and sealing will be hard to find.
I think that's impossible, because you have to cover only 0.5 mm radius difference and the threads are deeper.
So, you end up with something like an inverted washer.
I suggest the following (maybe easiest) solution:
Use a standard 10mm hollow rear axle for QR and screw on the cones, spacers and nuts of your existing front hub.
Remove / grind / file / dremel the threads at the ends, leaving a 9mm diam. without thread.
Cut the axle to approx 108/110 mm and fix it in the forks with a QR.
Of course you can also take a round file and make the inside of the fork ends 10mm.
Don't make the slots any deeper, otherwise your wheel will be off-center.
You can also look for a standard M9 front axle, but then you also need fitting cones and nuts. Especially cones that suit your bearing cups and sealing will be hard to find.