I agree, as I get older I learn to appreciate convenience. I have an old aluminum platform that was part of some stairs for a mobile home that I use for push mowers and its just big enough for a small snapper rer. I think you can see it in the background of one of the pics.
Thats pretty slick and handy, especially when working on a messy project. I forgot to mention the idea of bolt holes for holding the engine in place. There were a couple of holes already in the Workmate that lined up to the flange on the engine I was working on.