I had the same set of questions I keep seeing in this thread. I found the dimensions provided in the manuals didn’t really give me the info I needed.
Here are the dimensions of my table build.
Elite Foreman, 48x48, 80mm Spindle.
The motors hang past the edges of the table, and the wires stick out even further. It has not been an issue for me. Y-axis drag chain sits on the table surface just fine, I did nothing to ensure it stays on the table.
49x49 is the size of my spoilboard. The machine travel is something like 48.1 x 48.3. I was able to flatten the entire board by using a cutter with a 1.375" diameter.
Hope this helps somebody!