Great plane, but a big project, good luck! Contact the Curtiss museum in Hammondsport NY, they probably do not have the information, but may have some leads on where to find it, original Curtiss factory drawings for some of the planes are around still. Smithsonian might have drawings, and the Airforce Museum in Dayton may have the original military reports on structural tests and flight tests. I think a museum in the northwest got a lot of Curtiss factory documents donated some years ago.
Thanks for you reply. I have already contacted The Curtiss Museum they say Blue prints and production drawings were donated to WPAFB many years ago by Curtiss -wright corp. WPAF Museum on there web site states everything was forwarded to NASM. and Smithsonian. My reply just today from them they have correspondence but no blue prints. and for me to try NARA's Cartographic Branch (RDSC). So I sent off an inquiry to them to see what they have. Love gov. run a round. I did find some Curtiss Production photos. But there photo viewing system is very bad. you can only view the photo with 1/4 your screen size in the center. they are High res. images but to see them in Hi-res. you only get 1/8 the picture. Useing two photo programs i got them view-able . two samples below.
The Air Force Museun has a Curtiss P6E Hawk on display, and I think the Smithsonian has a couple of 30's Curtiss planes, either on display, or in storage. A request, if presented properly , and being persistent, can get you the opportunity to get close look to measure and photograph to your hearts content. I have even had them open panels for a better look inside.