Fred
It may be less costly to just buy a hank on sail then convert a sail from furling tape to hank on cord and hanks.
When the sail was constructed for furling, it's design anticipates spreading of the loads over the length of the sail cloth. A light bead in the furler tape, is designed to fit the furler extrusion. The tape is laid over the luff of the sail and sewen on to the sail's leading edge. The load is spread the length of the luff.
With a hank on sail the loads are at the points of connection. A wire or stiffened line is attached to the sail luff. Then the hanks are added using the luff line/wire to spread the load between the hanks. The hank points are then strengthened depending on the design and intended use of the sail.
If costs are the issue, looking for an old sail with hanks might be a quicker and less costly solution.