Hi,
While the upper spring appears hopeless. I once repaired a break like that on the lower spring where the break is at the point where the spring turns a 180 deg corner. I stuck both ends into a potato to keep them cool and silver soldered the parts back together. The spring has worked fine for 40 years. I have also had good results making springs from the steel that you get from brownells. I have never tried to make that kind of spring however.
Regards
Preston Chaney
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