I have a copy of disguise craft which you can disguise as a mob and also you can config it for blocks as well just pm me for the code
Yes it's there, but not has a individual plugin, because it depends on PocketEssentials API and you can't change that
and upload to github see if I can help with a bit and look at my chest refill plugin requet which falk is making one and ask him for permission to use his code to refill chests