Urgent Dialogue Noise Cleanup

I have two short film scenes, each running 2 minutes 40 seconds, that need immediate audio attention. An electronic hum sits under both takes, and the dialogue shifts between clear, inconsistent, and slightly muffled... (Budget: $100 - $125 USD, Jobs: Audio Editing, Audio Engineering, Audio Mastering, Audio Processing, Audio Production, Audio Services, Sound Design, Sound Engineering, Voice Talent)