Where can I find confd-5.3.5.libconfd.tar.gz

Where can one fine confd-5.3.5.libconfd.tar.gz and directions on how to rebuild with the latest openssl?

You should have confd-5.3.5.libconfd.tar.gz in your download account (same place as where you downloaded the other parts of ConfD 5.3.5).
Directions how to rebuild libconfd can be found in section 27.15 in ConfD User Guide.