Take a look at Kirk Hammett's "Too Much Horror Business", I might be wrong but I think he might own one of the original capes, and if so, there will be pics of it in the book. I know Lugosi was buried in one of the originals. If you need, I can try and find my copy, and see if I can find some pics.
I love that you're tackling this build! The tag is a great touch.
Good luck!
Very cool. I especially like the extra touch of the labeling on the inside. I would frame one up on my wall, hehe.