Hello everyone, first time posting on here, hope somebody can help me as I'm not exactly an expert on modelling. My son is a Eurostar fanatic, and for the past couple of months has been asking us for the Hornby Eurostar in the new blue livery for Christmas. As we couldn't find this second hand, and can't afford to buy it brand new, we have bought a used Eurostar in the old grey livery. I am going to paint it blue, but would like to end up without a blotchy mess. What would be the best technique to achieve a smoothish blue finish? Airbrush? Thick paintbrush? Thin paintbrush? Do I need to do anything to prepare the surface first? Please bear in mind that my son is 3 and a half years old, so it doesn't have to be professional standard, but I do want it to look nice for him.
Also, the front window is missing. I've contacted Hornby as they do not have this part listed on their spare parts website, but in case they don't come up with the goods, does anyone know of a model shop that can get hold of bits like this? I've spent the last couple of hours browsing the Internet, but without success. I'm going to go to a craft shop and get a clear piece of plastic to stick in as a temporary measure, but would like to get a proper window as soon as possible.
Hope all of the above makes sense, and I'll really appreciate any answers I get.