Well, that's what I thought at first. The base Blender model was done in about an hour or so. But details like the vents, LODS, texturing and baking... that's another story. However, thanks to the family stubbornness gene, I finally came up with something that actually resembles a shed. Somehow, I managed to bake 3 separate textures into one and bake in the ambient occlusion. My workflow notes are sketchy at best, so more practice will be needed.
If there's one thing I learned from this exercise... keep versioning your Blender file so you have a fall back point. Because I can tell you from first hand experience, having that fall back point comes in really handy when you're messing up... I mean learning a new Blender skill.