RE: Bel Air 40
You may notice that my plans look pretty shredded. I actually made two copies of the plans before I started. The original 1981 plans are safely rolled up in the box. I have a spare set of fresh copies, and the plan that I used to pin up and build the wing has become a desk blotter. The fuselage plan that I am building to has stayed pretty clean, and will end up as wall art when I am done.
When I built my Four Star, I used the plans from the box for everything, including cutting them up for the wing assembly. I stongly recommend making copies ahead of time. I think I paid about $15 for two copies (4 sheets total).