You would be best checking the Spanish Train Sim forums and is there a Portuguese one? https://www.railsim.es/index.php http://www.trensim.com/lib/rs/index.php http://www.spaintrainzrutas.com/download/index.php?cid=3 I cannot remember seeing Corail coaches in CP livery in the game but I did see a CP 1551 series loco somewhere
https://forums.dovetailgames.com/threads/sérgio-from-portugal-content-creator.40187/ I don't know if it is what you're looking for but check this out
