There are multiple ways to get region free now without needing RxTools or waiting for other CFW authors to add region-free:
- Yifan Lu's Loader replacement (will work with any CFW that supports decrypted firmware.bin, so that means AuReiNand and regular ReiNand for now, but regular Rei needs an extra step)
- Hard-patched Home Menu & NS CIAs (prefer option 1 when possible, this is dirty).
- FMP/RFP/NTR-CFW (you mentioned this, yes, but that doesn't make it any less valid, even if it's annoying).
Except that you can't use NTR with AuReiNand because NTR doesn't have 10.4 firm support.