Is there anyone in historical costume land who hasn;t  at least heard of Janet Arnold? 

Museum of London has some of the extant garments she worked from for the Patterns of Fashion series and has put a lot of information on line.

http://collections.museumoflondon.org.uk/online/group/21610.html

 I have always found this museum  very approachable and helpful, and they do a pretty thorough  photographic record once they get going.
 I am going to take the time to do more than browse a little - who knows the next inspiration may be lurking there.

Hope you find something of interest too!