Calontir Trim has available lamellar plates suitable for lacing into klibania, the armor of the Byzantine Empire and those within its cultural sphere. It is the armor that kept the Arabs out of Europe for the better part of a thousand years, so it should be good enough for you. The plates are commercially produced, and deburred and polished by tumbling. They are ready to assemble out of the box, but some might prefer to further deburr the lacing holes. I suggest using #550 cord for lacing. Further lacing instructions can be found here.