You might want to consider changing to historic plates in the future. First off, registration is much cheaper-I think mine is less than $100/year vs close to thousand each year for commercial. Second, insurance is much cheaper-less than $300/yr vs commercial truck insurance. Lastly, you don’t ticketed for non-upgraded safety features-for example, I’ve been stopped for having only a single tail light. Keep a copy of the Motor Vehicle Handbook in the truck, pull it out when stopped and show the officer the statute pertaining to his complaint. If the truck is per the original design there is nothing they can do. I understand your desire to drive where and when you want, but I’ve never had a problem driving around. Remember the law says you have to use the truck ”primarily” for events, and this is also understood to mean you can drive it for diagnostic or after repair checkout runs.