I decided to switch the whole idea around and utilize the test bench instead for my 4.0 main rig at x1. 3080 on slot 1, 3070 on slot 2, 1080ti on slot 3, 1080ti on x1 to x16 riser. I won't need a new PSU then. I have 6 plugs on the 1050w and 4 plugs on the bench. Perfect!
Props to DHL! EKWB shipped the plexi tops for the ti's on Wednesday from Slovenia, and they arrive today for only 16 bucks in shipping cost.
3070 did not get to UPS yesterday, so now it will arrive on Monday. Thermal pads and fan controller Saturday. This gonna be dope! lol