I need a sketchup file of a firetruck edited to match some photos more closley

I have a sketch file made up of a firetruck my company worked on and one truck in the fleet is different than the rest. I need the file edited to match the pictures of the different truck.


Specifically I need the truck length extended and 2 compartments added, one axle added on the trailer and 1 axle added on the tractor. I need the graphics changed to match and the lights placed per the pictures. I can explain it I'm much detail but realistically we're probably looking at an hour of work for an experienced sketchupper.