Hey @Memnarch!
I think you’re on the right track with the thoughts, but you’ve left out one idea.
The level contains the Machine, however each individual part can be placed within the level as well, it doesn’t have to be contained in the Pinball machine actor. That being said… I think it would be a good idea to go that way. Don’t think of it as building a level in an actor- think of it as:
Level: Arcade- also known as “Map”
Actors: Pinball Machine(s), Players, Decor
You can have different created pinball TABLES that you switch out, with the overall machine being a static mesh with no table. Then create the tables individually as actors and swap them out for new machines, not “Levels” as that translates to “Map”- but I get what you’re saying.
Hope this helps!