You've been around here a long time, but probably never realized that not many people will post up true numbers on a thread where all and anybody can see. They'll give you round abouts, but why ruin it when end-users are looking at these same threads ??
A simple blue band encompassing the truck and a few feet of die cut vinyl can't go for too much these days.
Figure out your material usage, about 3 or so hours of labor, whatever your overhead and profit need to be and you should be pretty close to a number.