I recently finished this fine paper craft/kit from Sankei. It’s made of high quality cardboard pieces, laser-cut to perfection. The manual is very easy to follow, although at times I have to use a translator app to fully understand some parts. The finished kit is small enough to fit on your palm, but it’s filled with details from windows to every corner of the house. I was excited to take photos and can’t wait for the glue to dry up, which is still visible on the tree.
Here’s RG RX-78-2 beside the house for size comparison. I bought the clear case from a local Japan Mart for less than $10.