We’re in our 70’s and are gradually transitioning from a 40x60 in ground garden. The beds (we have 2 and just ordered a third 4x8) were very easy to set up. We put together both long halves of the bed then carried them out to the garden then put them together. We filled the bottom 12” with cherry wood from a tree we had taken down, put in some alfalfa hay for nitrogen to help break the wood down, then filled the beds with a mix of potting soil, compost and top soil from a local nursery. Took a while to fill the bed but it was worth it. No bending. Will let you know how it goes once it’s planted and growing.