Where can I go to find information on creating a vintage CAP uniform?

CAP uniform regulations from World War II to the present can be found by visiting history.cap.gov. World War II-era CAP insignia can be purchased from Vanguard at https://www.vanguardmil.com/collections/cap-historical-insignia.  If you have not been able to find what you need, please email contact@history.cap.gov  and the National History Program Reenactment Liaison will be able to help find your answer.