Does the shed have a window and how much of a temperature difference would you say there is between the shed and the house?
I would put them out doors during the day and make some space in the house at night, and then make the move to the shed after a week/ten days of this.

I agree with Meanie,especially as you have just repotted them on..the tomato's especially need warmth and light..and the temperature change would probably be too cold for them at night..we are still getting some cold and frosty weather ...Have you got a window sill ,or a small table near a window inside,you could keep them on ,and put them out during the day,if weather permits ? ..also,if they did survive,it is possible they will grow leggy,if the shed hasn't got much light...