*** Disclaimer: Only for technically savvy people that feel comfortable to tinker with their system! Use at own risk!***
Important for the upcoming AC 0.8 release where you cannot customize your input settings yet:
There is a vjoy-based AHK-ADHD script called UJR - Universal Joystick Remapper that allows to integrate all your analog devices into one virtual joystick device by a feature-rich GUI (e.g., profiles, sensitivity, inversion per axes, etc.).
Get the latest version on git here.