Trailer Planes....1961

I was rummaging through some old books,,, when I came across a 1961 copy of a  "Mechanix Illustrated" book,, and sure as all get out,,, look what I found in it...
Instructions to build your own little travel trailer....

 from the cover, the book looks like the early 1960's... but...

 from the photo on this page,,, I am guessing that this might have been a re-vised edition from a 1950's book...

look how detailed the instructions are...
Any volunteers out there in Blogland to make one? lol!