You should start at the Home Page
https://lcsca.clubexpress.com/
Look under 'Shotguns' and the FAQs

Are you sure about the barrel length? NO hammerless No. 00, No. 0, nor Field grades were shipped with 36" barrels.

Please post the SN found on the action flats and barrel flats. Use XX for the last 2 digits if you desire.

Images of the side of the action, the barrel flats and action flats would help ID the grade.