Parts for a 60" Simonton window

Looking for parts for Simonton windows, these photos are of the current hardware. The windows are 60" tall, the sash weighs bout 19#, there are two independent springs on each side. I tried your S140-11, but the assembly is too long to fit in the slot in the track for the window and the spring length is too short.

Can you help?

Sincerlly
Jerry