I recently sized up my machine. I built a new table for it (before it was just on a flimsy card table) and then expanded the machine. If you have all of the parts ready you can do it an around 45 min if you really planned it out and used connectors for the motor wires or didn’t run the wires through the conduit. My upgrade took about an hour and a half but I had to splice in extensions for some motors and didn’t really plan it out that well. That isn’t counting cutting the conduit to length.