A really good idea

Every day wondering traders will change the items they sell example: so one day they will sell oak saplings the next day they will sell sticks. And if you give the wondering traders a bed, prices will be cut in half and if you let the wondering traders sleep for 3 nights it will have a 10% to have good trades like, 20diamonds for 10 emeralds, a 50% that the wandering villager will become a regular villager, finally a 40% chance that the wandering villager will leave 2 iron and 2 roses.