Clarify Muffled Home Security Recording

I’m working with a single 45-minute clip captured by a home security camera. The microphone was quite far from the conversation, so the voices are muffled or unclear and there is a layer of distant-voice ambience sitting over the track... (Budget: $30 - $250 USD, Jobs: Adobe Audition, Audio Editing, Audio Engineering, Audio Mastering, Audio Production, Audio Services, Sound Design, Voice Talent)