Just wanted to report I spent the weekend ploddingly installing a plasma
gauge set and really like the results.  The instructions were pretty
straight forward and luckily everything came apart easily and I didn't
further depreciate the brittle plastic gauge and instrument housing or the
blue plastic ribbon.

The only thing that I couldn't get working were the replacement LED bulbs -
so I kept the old style  bulbs in place instead.  The plasma gauges are
backlit so it doesn't really matter.

This is a really nice upgrade.

https://t3technique.com/electrical/plasma-gauge-set/

Bruce