Short report about my self-made freight elevator with a cable winch it goes up 4 meters. 400 kg are no problem for him. As drive I use a cable winch with a pulling force of 1000 kg. The winches are China products and work very reliably. I used 100mm U-profiles as rails (lateral guides). I think this is a low-cost variant for transporting goods up and down. I actually only used the deflection pulley because otherwise I would have had problems at the height.

Here is my website: https://www.fob-scale.com/