Re: extension, I would not consider it an essential, or the dishwasher to be one. I did try a bodge fix, but I think all of the movement has made it worse as it quickly began to flood. So this morning I have done the best I can to get the dishwasher plumbed directly into the mains, extension no longer a problem.
Lifting the flooring I have managed to get 1 piece up, but will now need to remove the dishwasher/fridge to get at the rest. The piece I have managed to get up looks like it is plastic backed with mdf? middle, I guess I will find out if/when I get the rest up but I would assume it will probably need to be binned. Unfortunately I cannot just lift and point a fan, as the only edge I can lift from is under the kitchen cabinets, and the only fan is trying to dry the flooring from the garage below.
My main concern is trying to limit mould and too much damage, as it could take weeks to get a builder in, even after the lock down. With the insurer only covering $3000 - excess, then I do not want a huge bill after that.