I used the same set of Brazilian VDO gauges in my CMC (356 A) back in the late 1990s.
Everything has worked well and as advertised except for the infamous trip meter odometer which quickly died when I had the temerity to try to reset it to zero while moving. That was the last time it worked, 18 years ago, but the main odometer just keeps chugging along. Everybody now knows that you cannot zero them while moving.
The latest VDO gauges (with the GPS speedo) on’t have that problem.
The electronic Tachometer works well with minimal needle floating and has the added feature of going nuts when your electronic ignition module is starting to fail.