i think it\'s best to built in all the houses that you can built. or blocks, because they take less bandwith and can be updated evey second again when one is placed.
eveybody just get\'s a patch of land and you can buy a block by a store. you can hire things to carry more than 1 at the time.
you see people walking with that block(it\'s already in game, so there shoudn\'t be problems) just as you see swords.
then you can put it on your building patch, and then some sort of finecalibration lets you fit it perfectly.
i don\'t see why this is impossible, if there is a good team working on it. and it wont take up much bandwith either, because if you place a block and confirm it, it becomes part of the map, so you can\'t delete it anymore.