This weekend Jason framed in the floor and the walls. He needed a second set of hands to help with attaching them to the trailer, so his cousin Patrick volunteered. It was amazingly sunny for part of the weekend, which made for an unexpectedly pleasant beginning to the project.
Jason is using open source plans he found at the Small House Catalog. Be sure to check out their website; this is the design he fell in love with first. It is a tried and true plan, which Shawn and his wife lived in for several years. I love his reasons for giving the plans away, see these here.