Ok i'll find something. Another reliable shop is Prominerz in Switzerland. I bougth some miners there to in 2019, i donnu their ability in spares, maybe on reguest as service?
You lose nothing if you contact them, it's just doesn't line up perfectly, Switzerland and mining don't seem to blend well, I mean who on earth would start a mining business in that expensive country? were prices near the reasonable back in 2019 when you bought the gears? I think what you should look for is a supplier in Eastern Europe, mining there is a thing and probably the supplier's option is much better on that side of the continent.