A few years ago I had a surplus red SBB dining car, which i decided to repaint in TEE colours. It's a rather easy job, just mask the area below the windows and paint the rest in cream. Here's what it looks like:
Even if there's no real prototype (the SBB had red/cream diners, though, but different looking 26.4m RIC type for international traffic), the model looks quite good in my eyes and has the distinctive Lima look.