You can see all ni market info at lmcni.com , updated daily. Most would take lambs to mart at around 45kg liveweight and at the minute get between £70-£80 depending on type etc. , hopefully rising in spring. (Rams &ewes). As to whether you'd be better keeping & tipping / selling or lambing next year, who knows? With small numbers it will probably depend if you enjoy working with them or not.