.

/summon Villager ~ ~1 ~ {CustomName:"kai ban",CustomNameVisible:1,Profession:3,CareerLevel:9999999,Willing:1,Offers:{Recipes:[{rewardExp:0b,maxUses:214748364799999999999,uses:0,buy:{id:paper,Count:1,tag:{display:{Name:"Information"}}},sell:{id:diamond,Count:27,tag:{display:{Name:"5000$"}}}}]}}