So, this project has ballooned to epic proportions, as the last floor plan demonstrated. So, among other things, we need flooring materials for the main floor. (The original plan was to have a concrete slab and do something like polished concrete with area rugs.) Thankfully, a friend was out shopping at the Lynnwood, WA Habitat for Humanity Store and came across 950 square feet of matching solid real mahogany flooring. (3/4 inches thick, 3 1/4 inch wide boards, and between 10 and 14 feet long.) The price was $2300 for the batch (about $2.50/square foot). They said it was donated by someone who bought it, but never got around to installing it, so it was in storage for a while, but it is new. As it happens, the floor area of the house is pretty close to 950 square feet. After taking out ~100 square feet for tiling the bathrooms and the laundry room, that will give me plenty of spare flooring to make sure everything comes out just right.