Remix Two Audio Tracks

I have an old recording (1980's) of a small musical group. The songs were recorded by an amateur in a studio and the sound quality is poor. Each song will need to be digitally remixed.

The tracks are in MP3 format. We can start with two tracks. I have others to follow if your work significantly improves the sound of the tracks. I cannot upload the tracks to PPH because of the 2MB file size limit. I can email them to you before you commit - if you wish. One song is of one female voice. The other will be the same voice only with children.

Please be willing to make alterations if necessary. Message me for five specific items to address.