The way my club (The Two Trackers Four Wheel Drive Club, Inc) accomplishes the same thing is to join United as a $100 organization with NO members (No OIP, minimum voting rights). Then we send each of our club member's United dues to Great Lakes Four Wheel Drive Association (GLFWDA). GLFWDA signs our members up with United and gets the OIP and the additional voting rights. My club doesn't have the funds to send a Delegate to the Convention, while GLFWDA does. So we give our votes to GLFWDA.
Basically, we join through GLFWDA, but we spend the $100 just to keep our personalized listing too.
Hope it helps.