The older Rockchuckers are fantastic presses. They have a very tactile "camover." I bought my first one in 1994.
Never had any issue of any kind with that press. It will outlast me and my children.
I prefer my older Rockchucker to the newer Rockchucker Supreme. The newer Supremes' have a two-piece ram. It took me two times to get one with a ram that matted up preciely.
Good luck with your sale.
GB