I paint most of my G Scale rolling stock and engines with Rust-Oleum 2X paints. When using rattle can paints, remember the paint does come out of the can very fast and its easy to apply too much paint and get runs. I apply wet thin coats and let dry 10 mins. between coats, two coats should work for good coverage. I would use gloss silver and red for my base color and then apply decals, then give a light thin coat with 2X Gloss to seal the decals and then the last coat with 2X Matt finish. A few notes here, apply the silver first and then you can tape off the part you want red after the silver has dried for a good 48 hours. I would always let the paint dry 48 hours between the different paints to assure that each color has had time to dry, paint over wet not dried paint can cause big problems. I’ve been a model painter for over 50 years and I have a pretty good idea what works and what doesn’t, painting this model should take five or six days for proper drying times and that’s with warn air temps
in the air. Here is a pic of a LGB Alco Diesel painted in 2X paints, took about 6-7 days to paint it with drying times.