Searching for caldwell 29 3 EO

A quick learner says:
September 20, 2019
have caldwell springs marked 29 3 EO
the metal portion measures 30 inches long is 1/2inch wide and 9/16 inches deep,,the plastic portion at the bottom measures exactly 1 inch, need two of these springs,also need 4 of the little white clips pictured.
Question are there any other parts I should purchase besides these two springs and 4 clips?
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Bob from SWISCO responded:
September 26, 2019

Thanks for writing in. See our S395-30. You will need a stamp option of 2930. For your face guide, see our 67-026. 
Face Guide
Face Guide
67-026
$0.97
30" Series 395 Channel Balance
30" Series 395 Channel Balance
S395-30
$11.30
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