Finally found a NOS clock for the 54 Commander on EBAY. Ed Renoylds listed it.
I put it in this this morning after doing 6 hours of presents with the kids (train set, race car set, bike etc)
On the back it has DEC 54. So it took 52 years to finally make it into a Studebaker, but it is finally in and keeping perfect time!
Merry Christmas to all!