Happily, the dash pad is made of the same black rubbery stuff all-the-way through.  Careful cuts with the saber saw and smoothing the edges with sandpaper yielded a factory look. Now that I know, I would do this for better defrost flow even if we weren't using the fiberglass cover.
    "Right Then!"  Mere days before the wedding, Young Master Hayden paints the area around the glovebox and each end of the stock dash to match the coming cover (if his dust mask were clear you would see the tongue in proper alignment to assure correct application of paint).
    With the cover painted and mounted securely under the top & bottom dash pads, we brought in the heavy artillery. We waited until now because we needed to have the cover securely mounted to properly drill the holes in the fiberglass cover and metal dash behind.  The dash pad bolts are kinda' a pain in the arse (Master Hayden's words) so we only wanted to do it once.  We hoped any small chips in the
new paint created by the hole saw would be covered by the gauge bezels.