Me and my friends want to play the Sevtech: Ages modpack (about 250 mods, not a very lightweight pack). We were looking at used server PCs, as we'd rather have one on our own than paying monthly for a host. We were looking at a fairly cheap offer of 16 gigs of ram and 2x Intel Xeon Quad Core E5520, would that be enough to smoothly run the server for ~5 people? If not, what should we look at? All we really know is that single core performance is important, but that's not much to start on.