The SLS pump on the M110 is driven off one of the cams as I recall, if you have your original engine you should be able to remove those parts and install them on another M110 fairly easily. There is a cam end cover corresponding to each cam as part of the "cam box", you can see them at the front. The cover is held in place with 3 or 4 machine screws. One of these covers would be removed and the SLS pump installed in its' place. I dont think you need to R&R the driving cam but maybe the sproket on it's end.