Drew,
This is the manual you need and I will email it to you in PDF format. It includes all drawings with the various schemes along with all stencils and locations. You have several different paint schemes to choose from.
You can choose between administrative gloss OD and white or tactical flat OD with black markings.
If you go with administrative Gloss OD your modern day paints are Imron:
White 508U
Olive Drab 8147U
Orange 547U
Black N8079UH
These codes were graciously provided to me by the Lone Star Flight Museum.
I am currently pulling my records to locate the modern paint code matches for the tactical flat Olive Drab we used on the most recent O-1 restoration.
Best Regards,
Steve