Sorry, Irishman, but my Reply button still isn't working for some annoying reason.
I'm going to go join up with the Dawnguard this evening, so after I kill myself some vampires, I'll see if I can't find one of the vampire hoods you're talking about and try it on alongside my Dragonbone armor.
Just out of curiosity, are you on Xbox or PC? The reason I'm asking, is because the armor my character is wearing is actually from a mod, and it's called Dragonbone Ebonsteel Armor. It uses ebony to reinforce the dragon bones and also makes it look a lot cooler. Stats are basically the same as standard Dragonbone armor, however.
I'd almost say it's a little tougher to make, since it requires ebony ingots and dragonbones, along with both the Ebony and Dragon Smithing perks. If you do have a PC, you can get this mod because it actually comes with a dark chainmail hood as an option. I went with the horned plate helmet because it just looks so damn boss on my character.
As soon as I get a hold of one of those vampire hoods, I'll be sure to post a screenshot for you. I'll try to get this accomplished before I go to bed tonight.