Silly me. I just thought of the obvious. We don't you paint everything virtually first to see how you like it all white? I use the Personal Viewer from Benjamin Moore all the time but others like Sherwin Williams have similar things. It is free. You can use it online or download the program. You will also need to load Adobe Air to run it on your machine. You will have to set-up an account to be able to upload and save images.
Anyhow, upload the image of the room you posted here. It will take you awhile---but not too long since you have straight lines---depending on how accurate you want to be but mask off the crown, baseboards and cabinets into separate paint areas. There are rectangle and brush tools and you can adjust the size of them. There are eraser tools if you make a mistake. Once you have the areas masked, paint away! You can adjust opacity and such things. You can save your virtually painted room as JPGs.
Another option is to use a room in the collection that is close to yours but with areas masked off.