Seller blocks TP (Datapack Requiere)

Adds craftable blocks that serve as intermediaries for selling items with other players. To avoid scams, etc.
In which you can put in the blocks what you want to sell and what item you want to receive in exchange. You can regulate the price between 1 to 64 items.

These blocks can only be modified and or destroyed by the player who primarily placed that block. Not even someone in creative can destroy the block