Is selling space to advertisers on new equipment acceptable?

I think it's a good idea for vendors, but also for any other businesses that may be in your area. My day job (that helps underwrite my farming habit) is in sponsorship sales. Depending on how far your trucks travel in the region, how often, etc., you may be surprised at what a restaurant, hotel or other type of higher-profile business may be willing to pay. Vendors may change for various reasons, so it gives you some diversification in who you can sell your space to. Just my $.02.