Hi Daniel,
We have just bought a granite house in the granite city and pretty much interested in doing all the same things that you have listed with your house So I'm very keen to know what have you ended up doing and how are you getting all with it all.
Currently we are looking into insulating the walls and fixing solum/subfloor & timbers from dampness (just this morning after a heavy rain came across a small stream of water running through the walls, though ours is terraced house, so we need to investigate if this isn't coming from our neighbour). So I would like to know what have you done with yours at the end.
Thanks, Lina