awesome. love watching these stories
Me too!
I don't know if you need it or not, there's a free software I used many times to design plans, it's Sweet Home 3D.
You can then download a lot of designed objects from the Sketch'up warehouse, but you'll need this software to convert files so you can use them on SH3D. I suggest you download and convert as much objects as you can because Sketch'up has only 1 month free trial.
Another solution is to take the objects already available in SH3D and modify them (size, textures...) to make what you need.
Either way, for a free software, I think it's a good one.