would this be fine? https://uk.pcpartpicker.com/list/3N3V3t already have 970 just have it on the list.You hardly need 750W. A 650W PSU of better quality, such as a Corsair RMx, an EVGA G2/G3/GS/P2/T2, or a SeaSonic Focus/Prime would be a better choice.
Thank you for your advise and opinions that helped me a lotLooks good to me. You chose proper RAM and a b450 motherboard with a BIOS that can be updated without a CPU.