2013 f39 filippi 1x 90-100kg £5,500. heavyweight filippi 1x in excellent condition. carbon reverse wing and comes with filippi boat bag & rigger bag.. Simplicity boats is about sharing information that helps people expereience the fun of boat building for the least investment of time, skills, or materials.. This category includes an air boat, duck hunting boats, boats for kids, drift boats, and electric powered boats. about our plans & kits.