Would it sound awkward if I omit "away" in this sentence? If so, would some good alternatives that can replace the word "away"?
Yes, it does! Although it's not a rule, "far" is usually followed by some sort of location, to give a feeling of comparison. Ex: I live quite far from my office. Ex: My parents live far from me. Meanwhile, "far away" gives off a feeling of being even further than just being "far." It can also be used on its own. Ex: Are you far away? Ex: He's far away now. Thus, in situations like this one, it's best to keep "away" in the sentence.
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