Trout fishing has temporarily interrupted my modeling but I have a Kato RS-2 stripped down and ready for a LM-2S. I have not done the install but here's my plan: so far I have removed the stock dcc & light board and the clamp that holds it in place on top of the motor. I have also removed the weight from the rear of the shell (i.e. the end opposite the cab). The Ring module will sit on top of the motor. Power wires will run from it and be soldered to the copper strips that are beneath the "walkway" and that act as pick-ups for the trucks. For the speaker I am using an i-phone buzzer that I purchased from Bill's Precision Design website. That will fit above the gearbox and where the removed weight was. I will be replacing the stock lights with LEDs; one will fit in the cab end's weight groove and the other will be glued with CA to the rear headlight port. This is a work in progress so I can't guarantee that it will work but a test fit finds all the parts go into place and the shell clicks back into the chassis.