Dear Sammac:
All plans and drawings for the 7-, 8- and 11-series airplanes are owned by American Champion Aircraft and are proprietary; they cannot be sold legally. There are usually non-flying Citabrias available that can be restored, however.
This Club has all manuals required to fly and maintain these aircraft and are available to the membership. If you are a member, see page 3 of the Publication Catalog for details. If not, I welcome you to join us - click here https://bellanca-championclub.com/Membership.html
Regards,