Glen-l has set the standard for boat plans for decades. all of our plans are intended for the amateur. it is not necessary that you have any experience with blueprints.. Our boat trailer plans feature the most modern, up-to-date, and technologically advanced features available to give you a boat trailer that’s equal or superior. Thanks to jeff at out your back door for the link . snip from the past "by the end of the 1970s, the all-wood ski.