Need help upgrading a PC

I am thinking of upgrading my 6 year old gaming rig.

The current specs:

› Intel Core i5-9600K, 6x3.7 GHz Sixcore (Coffee Lake-R)

› Cooler Master Hyper H412Ri (supersilent)

› 16 GB DDR4-3000 MHz Crucial/G.Skill (2x8GB), Dual-Channel

› NVIDIA GeForce® RTX 2060, 6GB GDDR6

› MSI Z390-A PRO, Sockel 1151, ATX, Z390

› 7.1 (8-Kanal) Surround-Sound, Digital Audio, onboard

› Samsung 860 EVO 250 GB (MZ-N6E250BW), M.2 SATA SSD

› 1000 GB SATA 3 Festplatte (6gb/s)

› Cooler Master Lite V2 600W, 80+

I am thinking of upgrading the GPU to RTX 5060/70, switching out the RAM to 2x16GB, and getting a bigger SSD. Are there any thing I should look out for? Any general advice?