We must be twins, i've got the same three working in a cluster.
I was really excited to see where the GB300 Desktops end up, with 768gb ram but now that data is leaking / popping up (dell appears to only be 496gb), we may be in the 60-100k range and that's well out of my comfort zone.
If Apple came out with a 768gb Studio at 15k i'd bite in a heart beat.