Sorry I dont have any extra dashes, the only other one I have is still in a car that I might still use down the road. There is an old timer a county over from me that has a few in his yard. I will try to get in touch with him.
While you're at it, see if he's got any of the knobs that fit on the heater/vent control levers on the little dash in front of the steering wheel. The '54s are unique and are oval in shape. I need all four for my Monterey hardtop. Thanks!