From what I can see in Neofly, yes. You have to do qualification check rides to open up bigger aircraft. Looks like you could stay with the single engine pistons if you want.
I got this set up and I love it!
The jobs and commodity trading scratches a weird itch for me. I was really into Elite: Dangerous for the same reason but with this add-on MSFS will replace it.
Sky4Sim is a great add-on, even without NeoFly. I will be upgrading both this weekend. What great add-ons that really opened up a new fun world in MSFS!