Building my first PC!

Planning on getting a new pc, sadly because of the ram prices I have to rush and get used parts

here is what I could find:

CPU: Ryzen 7 7800x3d

Motherboard: Asus B6500M-K Prime

RAM: Viper 16gb 2*8 5200

Power Supply: Xigmatek 850w Thor Full Modular 80+Bronze

And im planning on getting rx 7800 xt and upgrading the RAM in the future

I'll be buying it next saturday so is there anything I should change about this?