10G on twisted pair is terrible, it's power hungry and the SFP modules have a tendency to overheat. You need decent ventilation and not have 10G twisted pair connectors next to each other. Also only goes to 30M or so.
IMO, if you want 10G just go with fiber, it's less of a pain and more reliable. With twisted pair you may find out that the module overheats at times and the link drops out.