dfung,
I get what your saying. However, just because it has a 27 or 28 scale does not mean it's a baritone. Baritone I believe is tuned half a step down (not positive). Have you seen the new 8 string guitar from Ibanez? 27 scale, normal guitar as far as I can tell, just longer scale( to keep more tension on the low D and B strings) with 2 more strings. I wonder how the sound is affected. But I don't understand your point of more attack. Basses have a longer scale length, but because of the size of the guitars strings, and the tuning, it seems to me that guitar has more attack. Wouldn't the thicker strings on a piccolo reduce the tension? I know alot of people have problems with 5 string basses with a 34 scale because the B string is so big.
As for 1979, yes it can be played on a baritone, or a regular guitar aslong as its tuned Eb. Instead of going baritone, I think I'll just go with guitar, then move up to a 7 or 8 string. I'm just starting guitar so thats a ways off for now. I wonder how these 8 string guitars compair to basses, and If I'll need to keep mine around...