I have only done two in my day. What I done was remove as much as I could from the top. Then prop it up and unscrew the lamp sockets and switches. Unsolder the solonoids and label the wires. Then start unscrewing the cable looms and the harness drop into the cabinet. I mark the holes where the looms. Just reverse the process when you install the new one. Screw in the harness first and then re-attach the switches and lamps. It will be easy . The harness will want to go back to its original shape.