shift solenoid o rings

Goofy foot

sliding left...
I'm about to beging the process of removing and replacing my transmission conductor plate. While doing so I would like to replace the o-rings of the applicable solenoids. Anyone have a source for just the o-rings, or spec'd out sizes for the 2 different o-rings? I've tried dealerships(Merc/Dodge)...no go. Tried Transtar...no go. Sonnax is closed for the holiday.
 

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