The gauges are VDO. They're ok. Next time I consider VDO Nightvision and Stuart-Warner gauges. Ha! if there is a next time. Either the temp gauge, or the sender is bad, and the Ammeter is a different make from Brazil. Gauges from CB Performance, whom I'm not recommending. It's a long story. They have offered to take back the temp gauge and sender for testing, but I'd have to pay the shipping.
This is mostly done. It worked well, except for the temp sender. This past weekend I welded a nut onto the outside of my oil drain plate, and installed the temp sender there. It worked.
I removed the speaker grille, speaker, and with some difficulty cut a large hole in the dash. The cherry is about 3/8 inch thickness (9.5mm). It is not plywood, and as a result is pretty delicate. The circle in the photo is around a crack that happened when I tightened down too hard on that screw. This mounting does not take into account the curvature of the dash.