Hmm, after thinking things over and with the input I've received, here's what I'll do. Since I have everything on my hard drive I'll make up a demo CD with two tracks from the studio recording (the best ones) and two tracks from the "unpolished" recording - pointing out that those songs are "live". That way if they only listen to one song they'll get the best first impression but if they want to hear something more representative of a live performance they'll have that available too.