Window balance for 4w x 2h sash

A landlord from Rancho Santa Margarita says:
This is for a aluminum sash. This existing channel is 1/2" wide x 19" long. Please recommend replacement.
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
Thanks for posting. We may be able to help, but I need more information. First, were there any nylon pieces that attach to the top or bottom of the metal channel? Could you show me a picture of the metal clip that goes at the end of the cord? Finally, can I see the shoe that this balance attaches to? Thanks!
A quick learner from Rancho Santa Margarita says:
Hello Paul,
I found a photo of the window from the exterior if it helps. The property is 60 miles away so I do not have immediate access. If it is necessary I can ask the tenant to send photos of whatever you need. There were no plastic or nylon pieces. The shoe is a 3/4"x 3/4" aluminum angle (photo attached) that someone substituted for the original U shape shoe. I do not have a photo of the metal clip, but I recall that it is an L shape flat metal hook.

BTW - this balance is a header balance.
User submitted photos of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
Thank you again for your patience. We believe we have found a match, though it will need to be custom made. I will email you a custom ordering form for this balance shortly. Keep in mind I set the quantity to 1, since this is an overhead balance. If you need me to change that, let me know and I'll be happy to do so.
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