I painted my orbiters. I assembled my model in stages. I assembled the main airframe with wings minus engines, windows, OMS pods, cargo bay doors then filled the seams with modeling puddy, sanded, primed then applied the flat white using Testors spray cans. After the white dries I mask for black paint applications. I aslo paint the cargo bay doors and OMS pods at the same time as the air frame just not assembled together. I found it easier to mask the pieces separate than assembled. After I have painted the black areas and the model is dry I remove the tape and install the windows, Cargobay doors and begin to apply the decals. I wait until the end to install the OMS pods and Main Engines to make it easier to apply decals without knocking off the engines. Here's a link to the early stages of assembly http://forum.nasaspaceflight.com/index.php?topic=1806.msg290391#msg290391As for the tank I've learned from others here that there isn't a color made to match the tank color and the color varies as the tank sits in the sun so you have to mix paints to get close to the tank color. I found model railroad paints are close and easier to mix to get the right shade.Here is a link to what I use to pain the tank. http://forum.nasaspaceflight.com/index.php?topic=1806.msg194661#msg194661 Good Luck. I look forward to seeing your model.
Looks very good Chandonn. I have that kit in the stash waiting but I'm on a shuttle kick.
I see myself buying that Lego set.