This can be printed out in it's original size or smaller.
When glueing the roof on the storage section I found that it sticks out a bit much. The corners closer to the building can be cut if desired.
I suggest a 100 gsm card, but normal printing paper will be fine too.
It is designed for A4. I don't know how it will differ if you are using Letter size paper. It should all fit, but I can not guarantee that.
I would suggest pasting the base onto some card.
Attached are 3 pics of the finished item.