美国采购需求：梯子

I'm looking for a lightweight lifting device designed specifically for safely getting someone in and out of a 12-foot deep barge. The device should be portable and easy to operate, ideally suited for both indoor and outdoor use. Additionally, it would be great if the product could accommodate various user weights and have safety features like secure harnesses or straps. If you have options that meet these requirements, please share the specifications and pricing information. Thanks!