Sewing Library Dress with vintage silk

Hi everyone, I came across two packages of vintage silk at an antique shop--they're packaged in their original plastic envelope and labeled "Silk of Siam." They say that they were woven in Thailand and have an importer's name on them. I'm not sure how old it is, but I believe it's in good condition--just a bit of fraying and no smell. I still need to wash it (there are directions on the packaging!) I'd like to make a Library Dress out of it for a special occasion but I have some questions. I would like to make the version without a collar. First, is it an appropriate fabric? The silk doesn't say if it's dupioni or shantung on the packaging. Could I use either? Should I use the silk for the facing as well? Finally, I've never sewn with silk before! Is there any advice you could give me before I try to tackle this, particularly with the Library Dress? Thank you all so much!