1Technique, you can switch mod with *255 chest item and without it thorough the story when you reach the various cheats but better not do it.
Because:
1. It's not funny anymore, really and I'm doing it only because I already finished the story two times so I restarted my account;
2. It's better to look don't look at the map and just play the game, eventually you'll find all the equipments and key items
3. I'm a completionist so I'm doing the story mode again with the *255 mod because I'm crafting every weapon and armour.
So yeah, all this posts only to say that Semecs is right.