Hi, I've some old Hornby goods wagons -McVitie biscuits - which I wanted to repaint. I thought I read here that brake fluid is best for removing paint. Is that only for hand painted stuff ? I soaked one in some brake fluid for 24 hrs but it looks the same ,not a budge on the paint or signage. Is there another way or spray over the factory paint the only option . What are the best colours for goods wagons ? Thanks, Dave