I Looked yesterday for a very long time for a mod that is for singleplayer that is currently only a plugin... I love it so much! It adds more objective to the game. I saw some sorts of mods like mcmmo but they all arent up to date and currently not been getting worked on or just quit all in general. I wanted to see If anyone could make a mod just like the plugin! I bet a lot of people would enjoy this mod if it was created. Also instead of using a Iron block for a Anvil don't use that cause we technically already have a anvil added to the game. Just use the current anvil! Also I would like to see this mod keep up with the updates too!
If you do make it I would like to see how it goes!