#3961
As for sound, cases usually only have a front panel headphone output and microphone input, because that's all the mobos got connections for. On the rear of the mobo there will be more though, so usually you'd plug anything big and stationary into the back and headphones into the front as needed.
This is not meant to be a final partlist, just a general outline.
https://fr.pcpartpicker.com/list/PJQsbK
Pcpartpicker tends to be pretty bad outside of the US, but it's convenient to show what a build would roughly look like.
You'll need to check what's actually available and cheap in whichever shops you buy from, but the gist of it is
-7900X
-Decent cooler that fits on AM5 mobos and inside whichever case you chose. Standard tower cooler should be enough, not too thin though, 120 or 140mm fan. Dual tower if you want something even better, but you're not overclocking. Don't try to cheap out on this, the 7900X is a 170W CPU, and the cooler it runs, the higher the boost clockrates will be.
-B650 µATX mobo with 4 RAM slots. If you don't need Wifi then skip that. B650E if you want/need PCIe 5.0. 4 RAM slots because only 2 slots on a µATX mobo are the first sign that corners have been cut. Again, you're not overclocking, so you don't need anything special, and µATX is cheaper than full ATX, B650 is cheaper than X670. Avoid A620 though.
-2x16GB DDR-6000 CL36 or thereabouts should do. Just get whatever is cheap. Check the mainboard's memory compatibility list if you want to make doubly sure it'll work.
-Some sort of lower midrange 1TB SSD, that means TLC, not QLC. Tons of options here, reviews are your friend.
-Pretty much any 4-6 TB HDD will do.
-4060 Ti, again choose whichever you find a good deal for.
-Case with an external 5.25" slot (3.5" is much rarer), 2 fan included, and dust filters. Seriously, get one with dust filters.
-550W PSU (that should be plenty), 80+ Gold or better, fully modular. Check the PSU tier list or actual reviews to see if it's actually good though, 80+ is just an efficiency certificate, not a quality certificate.
There should still be enough money left for windows, if you need it, and a nice 4K monitor, especially once you actually look for better prices than just amazon.