Acorn Stairlift Chair

I'm interested in purchasing an Acorn Stairlift, either a Superglide 120 or 130. I need a unit that runs up the right side of a stairwell. I already have the railing, so would be interested in a chair only, or a chair + rail. I would like a unit in good condition, but if batteries are worn out, that is fine as well. I'm happy to uninstall and pick up/remove. If you have something like this available, please let me know, thanks!