You really shouldn't really need a map to help you, as neither of these aren't too hard to obtain.
"It Can Talk?!": Build mushroom biome on or near the surface, and the Truffle will move in.
"Real Estate Agent": You just need to be far enough in the game, and have all 23 NPCs. The Tavernkeep and Santa don't count, nor do the "Wandering" NPCs, which are the Traveling Merchant and the Skeleton Merchant.