I have a 'Mountain' 6-string acoustic guitar, bought as a present in 1980. I always thought it was a copy of a 'Martin' - is this right? I shouldn't think it was very expensive but I'm sure it was second-hand then. It sounds o.k. but I was thinking of upgrading and getting something with a thinner neck to make playing barre chords easier as I have unusually small hands and fingers, even for a woman, although it's neck is one of the thinner ones. I like the sound of Ovation, Cort and Tanglewood. Any ideas?