I've bought a lot of second hand AI gear, some even broken when I got it (free), and AI has always let me do the ship & repair/get new route. In fact every time they let me upgrade to the newest model when doing so. Great customer support in my experience.
If you're near Redwood City I have a couple things from AI / Ecotech I need to get fixed, so we could see if it makes sense to share shipping (I water logged a light and dropped a mp10 dry side....).