I work for a business that does this but this is not my area. My guess on charges will be...
Artwork-IF you want them to design whole graphics, but artist has to figure out how to fit graphics for the vehicle.
Printing-Itll be Digital Print so all materials N inks for vehicle N windows. Sometimes may use Computer Cuts for like phone #s added on after, or Edge Cut for smaller N detailed images.
Labor-Peoples who worked on it from artist, production N installers.
Since you wanna go all out Im guessin at least $1,000. Give it 2-3weeks.
Thats my guess but I know thats the procedures they go through.