Two thoughts:
1. The earlier 1973 Skymasters have an articulated linkage instead of a gas cylinder support. Perhaps finding the former in used condition might be cheaper. I have it in my aircraft, works quite well, and never needs maintenance.
2. The parts catalog shows that you can buy the individual components making up the gas cylinder assembly. Perhaps you can buy only the defective parts.
The figure below shows both the articulated linkage as well as the individual parts of the gas cylinder assembly.
Ernie
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