You can download the A319/20/21 Paintkit here.
We have a paint kit available to download here:
https://download-new.fenixsim.com/a320/paintkit/PUBLIC_PAINTKIT_A32X_V1.0.2.1.7z
Please read the readme for full information.
Please note: We don't offer official support around paintkits/liveries.
We recommend users to use the Painters Corner on our Discord for help from other livery designers. Join Discord Here