You don't need Wizz SOP. They will brief you very clearly before the sim session. You will be assessed on general handling, climbing, descending, steep turns, speed changes etc. Then you will have an ILS approach where they want to see your instrument scan but the actual landing is not part of the assessment.
Go do an hour or two of any decent 320 sim in your area, pretty sure there are a few at least in Madrid, get used to the stick and the neutral stability and get a feel for the protections alpha and bank over 33 degrees, but don't complicate your own life by trying to learn something they are not looking for, possibly opening yourself up for mistakes.