Bit of extrapolation there which I'll try and clarify, sometimes difficult with a keyboard but here goes.
Line 1. Correct.
Line 2 correct in relation to IR and PIFR. Unsure as to whether the IPC validates a NVFR tho.
IF it did you would be able to do both. As I mentioned I don't hold a NVFR so not my arena.
Line 3 correct.
If you are employed it becomes irrelevant after a bit as you just keep your IR current and will be IFR mostly anyways. If private with an IFR AC, go IFR and it's no longer an issue, if you need VFR the NVFR review may be the most economical option.