Ia1166, what you say is scary and so wrong. I really hope you are trolling. You can’t be serious. You know you might have to fly in direct law in the real aircraft right? Happened in 2016 in my company.
Never praticsing raw data flights in the real aircraft is a recipe for disaster.
The fact you are saying you won’t accept to fly more than one sector with A/THR inop says it all. Surely it’s not ideal but would not be a problem if you were doing it in a regular basic. Noone can claim to be able to fly accurately an aircraft raw data by just training in the sim. Period.