Anyone is able to make a shop a Simply Survival. All you need to create one is a chest & a sign!
To create a shop first place down your chest then place the sign on the chest you will need to shift click to do this!
The first line can be kept blank this is where your name will go once the shop has been created.
The next line is the quantity you want to buy/sell.
On the 3rd line you want to put your buy or sell price. To do this put B followed by the price you want to buy the item for or S followed by the price you wish to sell the item for.
You can also buy and sell items from one sign by doing B 10: S 15
Finally on the last line you are going to want to put the item name.