Now you can use
/chests to access to the chests shop, a new option called
shop-price will be created in the chests.yml file to set the chests prices, put it as -1 if you don't want to display the chest in the shop, also you will need the permission
advancedchests.shop.open to open the shop!,
this is a BETA version if you find any bugs or you have issues please let me to know