Budget 5.1 system for 250$

Hi, as the title says my budget is 250$ and im looking for a 5.1 setup for my home theater. I think i should look for used older sets of home cinema speakers but i dont exactly know what brands or models are good. I was thinking of buying used Logitech Z906 but if i can get something better for the price please let me know what should I look for. My room is 15sqm and i mainly watch movies and sometimes listen to music, I live in Poland.