Well, I stopped at a nearby Goodyear dealer to find out that the 13" Goodyear WeatherGards, that the NTB guy said were still availible, aren't availible from Goodyear! Goodyear said the WeatherGuard is a Goodyear tire exclusive to Sears.
They said they could order me some 13" Firestones for $70 each!
I'm going to check my spare W114 14" rims to see if they will fit Miss Daisy so I can stay with Pirellis.

Happy Motoring, Mark

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DrDKW