HI, I'm Chloe. I've bid on your project as you can see. I'm currently a recording engineer graduate from AIA and current student, half way through my degree at Full Sail University. I bid that I'd get it done in 2 days but I'll say that without a listen to your file, that's something I can't know for sure. Really everything is subjective here, based on that, even the feasibility of getting a crisp recording. The point being, that the bottleneck for quality is at the source, where you initially recorded it. If you record noise, something has to suffer to take that noise out. You may have heard stories of magic happening in the studio with noise removal, but that's usually a 60 hz tone coming off of a 60 cycle AC outlet that doesn't change. There we just invert the polarity on the waveform and we get phase cancellation, so we hear the addition of a positive and a negative copy of the same wave. We hear zero. So, What I'm babbling about is that I need to hear your file, or better, see the video with the sound, so that I can assess what I can do with it.
All of this said, there ARE however some really cool tools that perform what we call spectral editing, which is basically what I just described in a much more surgical manner. Contact me with a copy of the file and I will consult with you. As long as it's not insanely noisy, I'm sure my izotope tools can do the job, but i don't want you to come into this with the ideas of limitless audio editing power that so many often do.