Commercial Lifts Where Can I Find A Used Commercial Wheel Chair Lift For A Building?

Where can I find a used commercial wheel chair lift for a building? - commercial lifts

I live in DFW (Dallas, TX) area ... but I can send them. I must be lift up to 42 "(the one where the door of the building) any ideas where I am a used one? No matter what you think.
Thank you,
Izabela