I bit the bullet, sold the Z820 and am going to stick my current 5960x workstation into a 4U shorty case with a 1080 and assign it double duty as a render node and traveler workstation. While less portable than a laptop (I work 99% of the time in Toronto), I have become increasingly interested in (obsessed with) Isadora and think this change will make for a very sizable change in performance. Thanks again @DusX for the information you shared.