Take a friend or two. Look for visible dents or bends or signs of impact or stress. Look for areas where the fiberglass body has been pulled away from the frame. Take a ton of pictures, so that you can share and review it without returning to the lift. I think there is a lot of expertise here (not me). Consider posting a select few pics here for members to evaluate. Use a mechanic's work light
to illuminate areas for inspection, and for pics. You might consider taking a carpenters' level or square to measure if the frame is straight and square. Damage is likely visible, but those laser levels are amazing.