You should get the armor with AddItemMenu and you can temper it in game just fine.
Only use Thong provided by this mod because i removed Body HDT to make proper armor. It's not nice at all see bouncing metal XD. This armor now more shiny than original.
Actually I want make patch or something for this Bless but impossible. What I did almost change 80 percent original mod. Not to mention original mod still in LE format and I modified many alpha textures including environment masking. Better I load it full and done.
Credit for team tal for ported this armor and Kreis for that elven thong meshes.
Enjoy then.