850w enough for build

My current build: Intel i7-9700k Coffee Lake 8-Core 3.6GHz LGA-1151 (4.9GHz Turbo) GIGABYTE Z390 AORUS MASTER LGA 1151 (300 Series) Intel Z390 SATA 6Gb/s ATX Intel Motherboard GIGABYTE GeForce RTX 2060 SUPER 256-Bit GDDR6 32GB DDR4 SDRAM (16GB x2) Crucial SATA III SSD x2 Cooler Master MegaFlow...

I am looking to purchase a new PSU, and in the future I am planning on installing an AIO CPU cooler, although I have not picked one out yet. However, I need to purchase the PSU a lot sooner than the AIO. I am not sure if I should purchase an 850w PSU or a 1000w PSU. I am planning on doing some...