Hello Dan! Welcome to the forum. I know nothing about the table, Is there other mounting plates that can be bought? If you need to build one, i think that can be done by working with the center of the router bit. If you make a template of the original plate, with a point to mark the center line, Take the new router, and Mark the mounting holes with the bit centered. Mark them very carefully, and drill them so they are centered perfectly. Now, they can be countersunk and the router will self center the router to the plate, and the table. I hope that this helpers.
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