I chose the 60s as well, for all the above reasons, and the fact that I love the really cool wraps from this era. Regardless the builder, the wraps were just the coolest from this era. And the deep, resonant sound of the thinner plies old growth woods is so much different than modern drums.
I am working on a way to artificially age new, modern shells with a constant heat and humidity process. The shells are 5 ply Keller. This could make a difference in the sound and resonant quality in the short term, making today's shells a little warmer. And adding re-rings to these shells coulod give a focus similar to yesterday...just a theory at this point....