Amazon has the EVGA SuperNOVA 1000 G3 pretty cheap right now. Lowest it has been on camel and less than 850w.
EVGA SuperNOVA 1000 G3, 80 Plus Gold 1000W, Fully Modular, Eco Mode with New HDB Fan, 10 Year Warranty, Includes Power ON Self Tester, Compact 150mm Size, Power Supply 220-G3-1000-X1
https://www.amazon.com/dp/B01LZ3S…HBbSW