Oh, if only I was a modder... I'd love to help, I really would. Nocturnal's Cowl is my favourite Oblivion artifact, as soon as I got hold of it the first time I deleted my old saves and from then on the Thieves' Guild was the first questline I completed (so I could then go on a pilgrimage to fix my reputation, then use the cowl for all my evil deeds). I so hope you work this out, and look forward to the day you can release it... somebody please help this guy!