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Just a suggestion: Letting people know what kind of car you're working on really helps. I know your list says '57 wagon, but sometimes people posting questions can be working on cars other than their own.
Anyway, my view is that if the springs need replacing, then it might be time to replace the control arm shafts and bushings, as well as the ball joints, too. Removing and installing coil springs is enough of a physical job (for me, anyway) that addressing as many repairs that require spring removal is a good idea while they're off. Don't know if that includes ball joints on a '57 Ford, but the springs had to be off to remove the upper ball joints on my '65 Thunderbird.
Be careful on the spring compressors. If you're cautious and work slow, using them isn't the Russian Roulette that some people imply it is, but getting and keeping the shaft as centered as you can, checking contact points for slippage and cranking the wrench from a relatively safe vantage point are all good ideas.