If there's any Special Edition players (like me) here at Chorrol that yearn for Immersive Weapons, this guide works well.
Took me about half an hour (and I'm completely new to all that) and it seems to have worked well. I'll know better after I play for a few hours, but the Antique Iron Sword showed up for me right away in the forge menu.
Cheers!
--------------------
Wrapped in furs beneath the northern lights From my cave I watch the land untamed And wonder if some becoming season Will make the angel melt in shame