Fun or not, depends on how you look at it. I spent a good part of the day measuring one of the houses and drawing up it's floor plan. Then I modified it to reflect the structural changes we are planning to make. This is a sneak peak of the ideal "after" design of Mom's house. I'm planning to do a post where I explain the changes, but tonight I'm just too tired. Hours in Illustrator will do that to you. Especially when you decide that you need to mock up each piece of furniture to scale to play with how it all fits.