I got a enclosed freight body kit for my rail truck from Mount Blue Model Company. It was my first laser cut kit and it went together well.
(http://www.mylargescale.com/1stclass/JerryBarnes/Bachman%20Rail%20truck/railtruckBoxa.JPG)
http://mountbluemodelco.com (http://mountbluemodelco.com)
I used Krylon primer and flat black. The roof is removable to get to the battery. I made a seat and put a passenger in it.
Isn't laser cut amazing? Nice job you did there.....keep it up!
Sid