In my opinion rather don't repair it and get a new one, or an used one that isn't damaged.
I repaired all kind of stuff, also some forks, but it just isn't worth in my opinion. For example the repair can cost +50eur, and for some more eur you can get a fork that isn't damaged..
Otherwise for that kind of damages it's probably the best way to cut the area where it's cracked, make a carbon insert that is glued inside the fork, and then restore the rest of the damaged area from the outside. But it has to be done with the right layup, right materials, process,...and it's quite a lot of work, in my opinion just not worth. In the end it has to be also painted, clearcoated, polished,... It's a different story if it would be a frame with broken seatstays, where the forces aren't that high, but for a fork it's just not worth, even less if you don't have experiences and if that would be some type of experiment. So in my opinion rather let that cracked fork and get a new one. Imagine your cracked fork here: http://www.youtube.com/watch?v=6_Nb3MkvJFI
If it's still stiff while you press the droputs together that doesn't really mean anything..if it would fail, it would fail at the moment when there are big forces,..
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