Chest shops are pretty boring to look at... Wouldn't it be nice to have a villager act as a "Merchant" for you?

A Merchant would be a WilderCoin Shop exclusive item that allows you to spawn in a Merchant.

Merchants would not have any AI (no movement, no hassle!) and cannot be killed like normal villagers.
When clicked by customers, they open up a shop GUI similar to a shop chest.
The owner of the shop may right click to open their shop GUI to restock/take payment, or left click it to open a "manage merchant" GUI.
Using this "manage merchant" GUI, they can change the price, rename, or remove the merchant.

Obviously, using a villager entity will cause more lag than having a chest for a shop, so that is why this item should be WilderCoin Shop exclusive - to limit how many there are.

I took screenshots using commands to simulate how these would work - see link below:

https://imgur.com/a/TftbPYe