Skyblock With Shops

If you have ever played a Skyblock game on a Minecraft Server, then you know what you are looking at.  I loved to play Skyblock on Public Servers with my friends, but I wanted to play Skyblock whenever I dont have an internet connection which is why I created this.

This is an Open Beta! 
The map is playable, but not finished. I still have some more Redstone to take care of but let me know what you think, and what I can inprove. 

Any Feedback will be apreaciated.  Ideas, Bugs, etc. 

List of Trades 
Buying                                       Selling 
Melons                                       Rotten Flesh 
Pumpkins                                  Bones 
Wheat Seeds                             String 
Sugar Canes                             Ender Pearl 
Carrots                                       Planks (Oak, Birch, Spruce, etc.) 
Potatoes                                    Cobblestone 
  Grass Blocks                          Stone 
  Dirt Blocks 
  Quartz Blocks 
  Obsidian 
  Water Bucket 
  Lava Bucket 
Cows 
Chickens 
Pigs 
Sheep 
Wolf 
Villager 
Horse 
  Coal 
  Iron 
  Redstone 
Oak Sapling 
Birch Sapling 
Spruce Sapling 
Jungle Sapling 
Acacia Sapling 
Dark Oak Sapling 

Coming Soon... 
Buying Diamonds
Selling Arrows
Buying Arrows
Buying String
Buying Bread

Fixed Bugs...
Multipler Spawnpoint