What I have on one recording is vocals and acoustic resonator guitar hard left, snare drum hard right, bass somewhere in the middle. They were playing unplugged outdoors with no PA. I think if I pan the left channel over to center things, the snare will be shoved way down in the mix.
The other recording has guitar and vocals hard right with standup bass hard left, drums in the middle. I'm using Audacity for editing. I have access to Soundforge if needed.