projectors to see things happening far away

there would be some kind of banners that you create using a white banner surrounded by copper ingots, a projector that receives the image from goggles that equips a player or from a "camera block" that sends the data through a code that goes into the projector and in the "camera block.
the projector is crafted using three observers in the center and above and below redstone, for the goggles two glass panels on either side of the center and all full of ropes; for the "block camera" an observer in the center and all around copper ingots.