Restarting for a cosmetic reason

Hello everyone,

I'm thinking about starting a new save. I really like the original Talion gear, especially the broken Acharn as a dagger, which evolves to an Undead Legendary dagger later in the game.

I have already finished the game twice, and in my third playthrough, I would just stick to a chapter in the game where I'm still with Celembrimbor and have Acharn.

Is this viable? Would love to hear your thoughts