You can see sort of a crappy full-length shot of both dolls, which Leslie of The Vintage Goddess had for sale for $2400 at this year's Barbie Convention, here:
The 1970s version is actually for sale in her online store (I believe the set sold at convention). I think the 1960s version comes up less often and is slightly more popular.
Her arm is actually on the same side as one of the original Barbie Basic Model 03, though this doll wasn't released as a Target exclusive till two years later. Her hair style is also similar, though her facial screening is quite different.
Her outfit is really cute--check out the beaded details and the boots in the full-length photo.
Again, I'd love to add both to my collection. I can't decide which doll I like most!