All boats shown here are usually built by using wood / Plywood for the frame, and lightweight PVC coated tarp for the skin.
The oats can be built too with HDPE and aluminum, with plywood panels (stitch and glue method) or wood strips. There is no instruction available for building by using one of these alternate methods mentioned above.
Sorted by purpose and in alphabetical order by name.
And here you can find a complete catalog of all designs.