lol no dave stud wallls internally are better as they are insulated and obviously lighter...the block walls before bowed the joists...

The joists are sat into the wall not on hangers the only ones on hangers are the ones used as the trimmer round the stairs....

Well time wise opposed to a car...we have 12 weeks in for this, including the extension, but it wont be done in 12 weeks time as we wont be there for maybe 2 months from now....