Your best bet is to patch a PC copy of FF7 with NT, and then take the following files out from C:\Program Files (x86)\Steam\steamapps\common\FINAL FANTASY VII\data:
-) Battle.lgp (battle folder)
-) Char.lgp (Field folder)
-) Flevel.lgp (Field folder)
-) Scene.bin (lang-en/battle folder for steam, otherwise same place as battle.lgp)
-) Kernel.bin & Kernel2.bin (lang-en/kernel folder for steam)
Those are the five main files of the mod. If you're able to access the IOS files directly, then replacing the IOS versions of the above files with NT ones should do the trick.