Option 3: You can use EFIdroid to install FP OS alongside Open OS. Whenever you need such an app you can reboot your phone to FP OS.
You can disable almost all Google Apps & Services (all but the Location Services and the ones the App(s) actually need).
Option 4 (maybe): There are ways to mock the existence of some Google Apps and Services. For some others there are no replacements yet and this discussion suggests that such apps like the ones you want to use may need services not implemented in microG yet.