Would you trust 13 year old tires?

Bringing back a earlier topic here... Had a different aspect of aged tires show up here yesterday. While out doing other things, I noticed the left front on my 67 fish is flat as a pancake.
"HMMM That's od, a 1st for this car. Must have picked up a small nail during last little ride. A ten year old tire probably shouldn't lay that way though, ( sidewalls wadded ). I'll pump it up daily if needed until I can get to the tire store".
Nope. Rubber valve stem is broken. Air leaks out almost as fast as pumped in. Maybe bumping it last time we washed the car caused a small crack that grew larger. Who knows?
I've heard of 2 recalls of rubber valve stems. Even so, I doubt there's lot of quality control or life expectancy research related to any of them. 99% made in China? Probably.
Metal valve stems, with or without pressure monitors behind them, are just 1 more modern car advantage. Thy are designed and built to be more dependable in ways we never think about.
Anyone know where to find quality metal valve stems that work in 1967 Chrysler steel wheels?
I know to break them down and replace the stems is a bit pennywise and dollar foolish.
The never ceasing virtual vacuum takes our dollars and leaves the pennies.