Honestly, I can't comment on the roof. If you have already experienced it yourself and it was tolerable, then that's fine. When it comes to the electrical work and bathrooms, however, I am quite certain that these tasks restrict the quality of life in the house so much that you can no longer really speak of living there. Well planned, it doesn’t take forever either. What’s the point of moving in a few weeks earlier if you then get annoyed every day about the nasty washbasin or the old switches, missing sockets, missing network. Regarding the nerve-wracking situation, I’m keeping my fingers crossed for you, but don’t forget: the next house will surely come, even if right now you can’t believe it and desperately want to get this one.