You’ll save a bit of power with the v4’s. I noticed about 40-60w difference from 2698v3’s to 2650v4’s.
I have a FX2S with four nodes each with two 2680v4’s and I’m plenty happy with the performance virtualizing. At those court counts, you’ll run out of RAM to allocate before running out of CPU to use.
This looks great! Looking forward to setting it up, thanks for sharing!