My friend/carpenter is building a custom cabinet with the machine (and extension) dropped into the table. Do I make it regular table height ... or the height I'm now using (with the machine 3 1/2" above the table)? It will not be "pretty" but mostly for utility. Any suggestions would be helpful. I know one side will be an open bookcase and the other side is just square legs. The size that will fit my space is 28x54.