Which engine is better

Hello colleagues, I am facing the decision making as to which motor to use for my earth station, I wanted to inform myself about benefits and counterproductions that I have when using stepper motors instead of DC motors in the station, I make this query now that in my country it is very difficult to get DC motors of the specifications that satNOGS says, I was searching the forum but I have not found information. From already thank you very much

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