Please help me replace these balances

A handy person from montrose colorado 81401 says:
im looking for these shoes for a vinyl jam double hung.also seeing if you have this balance spring the balance has 28H on it and its 28 3/4 long without the the shoe. and its 5/8 wide also pivot.the pivot is 1 1/8 tall and 1/2 inch wide..if you can please give me the part number for these parts please asap my customer is waiting.thank you very much for your time.
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
Thank you for your patience in this matter. I recognize this shoe, but unfortunately it is no longer made and we do not have any applicable substitutes. You might be able to use our S751-28 balance with our 26-151 and 26-152 pivots, but I just don't know if that will work. Take a look and see what you think.
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