Get it and then go buy the v4 chips that u/karmaawhoree has for sale over on r/homelabsales.
Yep, was surprised to see that 2x2680v4 is lower power consumption than the previous 2x2630v3 that I had, despite nearly doubled the cores.
I have two 2680v4 with 160GB of RAM, 1 SSD, and 12 HDDs (4 SAS, 8 SATA), and a Quaddro P5000. Average consumption over the last week is 220W (about 25 docker containers that run plex-related stuff 24/7, and a handful of self hosted things). Min consumption (roughly idle, I assume) is 164W. Power is cheap where I live, <12¢ per kWh.
You could cut power consumption down by removing a CPU or consolidating your storage to fewer drives (or going with SSDs if thats in the budget).
2x 4 TB for $40, i had my head up my butt salivating at the deal
Definitely not a deal worth salivating over. And honestly, don't even think it's worth buying a SAS controller for. Just chalk it up to a loss, or try to re-sell them.
I'm surprised at how willing people still are to help this guy.