I know this isn't the answer you requested but have you considered, rather than initially setting the PUP height similar to the actual Alligator, playing around with the overall setup, including string height, on your own Strat with your fave Dead recording as a reference point? Considering how many factors go into a setup in total, you might get yourself closer to the tones you want this way than only copying Jerry's string height. Just an option for your consideration.
MY ORIGINAL MUSIC (available on all streaming platforms):
Galvanic Samurai (2021)
Traffic in the Moonlight (2023)
So Glad I Came (2023)
Desiderata (2024)
Duality (2025)
Love, Loss, Ecology, and War (2026)
Caught in the Current (2026)
Legacy (coming 2027)
Jerry would be the first to tell us, "I never spent my life copying anyone."