Some time ago, I needed something to support lumber at the end of my chop saw.
I had an old camera tripod, and my wife had an old rolling pin (both the same age). I took the handles off each end of the rolling pin made a long U shape bracket and attached it to the rolling pin. Then I attached the bracket to the tripod. It is adjustable in height, portable and easy to store when not needed also easy to adjust on any uneven surface. Works great!