I built this little PC for my aunt, using what left from my other PC: The case and the PSU. I made a lot of questions about the PSU and the possible problems in PCPARTPICKER forums (thank you guys for your advice). As the CPU will take a little power from it and no VGA card will be used, I think it's going to behave nicely.
About the RAM: Is too expensive these days here in my country. The budget made me to buy only one stick. Maybe add another soon to use the dual channel config.
About the processor: Is about the same price than an APU, so I went for Intel (personal decision).
My aunt is going to use the PC as a printer server, to surf the web and listen some music. only 2 low end PC would be using this one to print.
What dou you think? I think is pretty good for the main purpose and hope it last for many years.
Greetings! Thnk you very much.