Hi Diamondback76,
Seems like you know a great deal about trucking so that's great. The best advice I can give you is to you is if you are or were a trucker, build a site that details the things you experienced. What problems, myths, challenges did you face. The more personal you can make it with your own experiences, the better the site.
People love problem-solving or fact-finding sites authored by people who have had first-hand experiences. Those make great sites because you can connect with your audience. So my advice to you is to make a list of various topics you'd like to write about and put the info in an outline to help organize your thoughts.
Also check the AdWords tool and type in trucking related keywords
https://adwords.google.com/select/KeywordToolExternal
This will give you an idea of what people are searching for related to trucking and you can see which keywords are most popular.