A zipper sleeve on a boat that size is quite unusual.. But in any case the sail can certainly be modified for the foil by the addition of the proper sized luff tape (most likely #6).
You will most likely also have to have the sail cut down to allow for the space the
furler drum takes up on the forestay length. This will result in a smaller sail, but with better visibility underneath the foot.
As a sail that was not designed specifically for a
furler there may be some limitations, but it will be usable. You should also add a UV protective strip along the foot and leech if you plan to leave the sail up and furled between trips (as most do)