What to pay attention to?

Question

Iron

Hello.
It is necessary to assemble a computer that would play the role of a server (OS Windows Server 2008, 2-3 terminal connections to access the 1C 7.7 database). The budget is limited to 25-30t.r.
what hardware to choose (processor, memory, ssd / hdd), what parameters can be neglected, and which ones you should pay special attention to.
Thank you.