Functionally, the only things you should care about in a fork is diameter of the steerer (and hence the fork crown diameter) and the rake and possibly the size wheel it's made for. If those aspects are covered then the only remaining issue is that a fork made for an integrated set-up will have a wide unpainted flat shoulder that would usually be hidden by an integrated frame- so it'll look a little ugly in a conventional frame (but a headset with a bigger style of bottom cup will to some extent cover this up). Sim'ly a std type fork crown (slope-y) will look odd under an integrated frame.
Good luck.
Functionally, the only things you should care about in a fork is diameter of the steerer (and hence the fork crown diameter) and the rake and possibly the size wheel it's made for. If those aspects are covered then the only remaining issue is that a fork made for an integrated set-up will have a wide unpainted flat shoulder that would usually be hidden by an integrated frame- so it'll look a little ugly in a conventional frame (but a headset with a bigger style of bottom cup will to some extent cover this up). Sim'ly a std type fork crown (slope-y) will look odd under an integrated frame.
Good luck.