From the pics it's kinda hard to tell...the differences in control arm length and the angle from being at full-droop tend to fool the eye. It would be better to have it tied-down to normal ride height and then get a more straight-on view.
Did they do geometry a little different back in the day? Oh yeah, and it had more to do than with just bump steer. High aspect ratio bias tires, customer preferences for ride quality with the bad roads and lower speeds of the day and finally the safety-driven belief that the car should always understeer even if it had to be induced by (what would be today) bad geometry were factors. Hey, at the limit, better to have it plow straight forward than get a grip and roll over...
Still, I doubt that at ride-height with the lower a-arm parallel with the ground there would be an upward angle on the upper one (and remember it's about the line between pivot points, not the shape of the component). If it turned out there was, I'd not want that present in your new setup.