Anything being spawned dynamically when the game starts will require a form of dynamic indirect lighting, so yes LPV or DFGI are the only current options.
When you say “Procedural Mesh” I would presume you are just meaning that you are spawning the mesh when the games starts like you mean above and not the Procedural Mesh that can be drawn using Blueprints. In which case, if you want the objects to use static baked lighting you will need to not spawn these at the start of your game/level. They will also need to have properly setup lightmaps to get good baked shadowing as well.