Woofie - I have taken mine apart during a couple of cold winters (which doesn't happen often) and brought the plants into the garage. I was able to slide them carefully back onto the rebar in the Spring when I put them back outside again.
Rick - I like your idea with the pavers. I wonder if they would be more stable if you were able to bury them into the soil a few inches? Having a sloped yard is an issue, I well know. I haven't had to cut any of the concrete or cinder blocks. I have no idea how to do that. I just build the beds to the size of the cinder blocks or bags of concrete.
