I agree with the others. Ovt of a few hundred is not bad for Arabic terms. If the terms are good - you should be able to tell that being a native speaker, and used - Google should be able to tell you that, than go for it. If you even get 1 good name out of 10 registrations than it was worth the cost. And you being a native speaker I'm guessing you'll do much better than 1 out of 10
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Remember Olney's rule - don't hesistate. Do your research, but don't hesistate.