BKS, I started out on a Work Mate. I put a peice of 1/2" plywood the same size as the bench in the full open size, and mounted my Lee press on the right hand end with bolts. Then when I wanted to use the powder drop, case trimmer, or any other thing, I just screwed it to a peice of wood and C-clamped it to the other side of the bench. I cut a peice of scrap wood to cover the space under the bench and put my reloading supplies(bullets, powder, etc.) on there. It gave it enough weight to help stabilize it. And I could still fold it up to store it! I still have that bench, even though I have moved up to a regular work bench. I will use it when I go to live on my boat!
You have a great idea!
Thanks, Robert.