Replacing a coil spring with non OEM part?

My Golf mkV GT with 80k miles has a broken coil spring. My garage (not a franchise dealer) advises to fit genuine Volkswagen parts but there are none in the country and it will be about 10 days. Does this all sound reasonable?
There are some very good branded aftermarket springs, but if you use a different one from standard you need to replace two as a pair.
Answered by Honest John on

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