Building / Repairing 'Villages'

The basics is after a raid, creeper, etc a village can get a little 'damaged' and what I would like to see is a special part of a building 'cornerstone' allows you to open it like a storage box, put in the materials required to repair it back to 'spec' plus some emeralds and after all the required stuff is in press a button and a 'villager' will repair the structure within a day for example.

I've also come across abandoned villages that are in a great spot and would love to repair it all but it's just a PITA to go around doing everything yourself and in some cases, villages can be split or start with an abandoned building or two.

Then for building use the lectern (unused at this point for in game stuff) to create a new buildings cornerstone (pay?) that you have inspected before so you can build things you know.

Then for further expansion there is nothing stopping you guys from having say a marketplace where 'buildings' could be placed for people to purchase weird and wonderful things that people can build, say the starship enterprise, weird red stone contraptions, etc where the cornerstone can be used immediately.

Maybe even allow deconstructing an existing building and move it somewhere else. In the education version it wouldn't be hard to have educational stuff where are few basic 'buildings' are given and kids have to do something way more complicated. The fun part will be the base rules to operate again you have to inspect the corner stone to build it and if destroyed ...