curious if the 1970 inner frame is an improvement structurally? (if that even matters)We've had very good luck with our reproductions (Golden Legion), and I feel it's a well-done piece... But... The Ford Tooling hood is US-made and a bit better and more-correct in all the little details.
Long story short, the repro is $512.75 good and the OE Tooling is $671.50 good..
As was said, either hood is "technically" correct for 1970 due to the inner frame being the 1970 design that Ford superseded to many moons ago.