Thanks so much. I look forward to trying this out with one supply, then scaling up. I'll keep you updated. Right now I don't have any shipping information yet.
I just ordered these, 1500W 125A. Hoping they are similar. Should only need three as you said, with one spare.
https://www.ebay.com/itm/187027894637
I’ve got tons of copper busbar. Just need the plugs. What did you use to convert NEMA 14-50 to the eventual splitter?
This is fantastic! I created an account here just to reply to this thread. I am going to build this. Can you let me know which power supplies you used? Thanks so much for sharing your work!