Looking at photos 11&12 on pic click https://picclick.com/Technics-SL-1700-Turntable-Plinth-Genuine-item-Cabinet-392013998923.html#&gid=1&pid=11
the suspension is the same design in principle. Drilling and tapping the holes for the old foot mounts to accept the SL-1200mk2 feet should be just as easy as on my SL-1700mk2. Don’t drill all the way, because you need to put a screw in the bottom of each suspension tower to secure it to the plinth. I took regular sheet metal screws, #6 iirc, chucked them into a drill and held a flat file to the heads to make them fit through the suspension tower. It is much easier than it sounds. Really, it is.
the suspension is the same design in principle. Drilling and tapping the holes for the old foot mounts to accept the SL-1200mk2 feet should be just as easy as on my SL-1700mk2. Don’t drill all the way, because you need to put a screw in the bottom of each suspension tower to secure it to the plinth. I took regular sheet metal screws, #6 iirc, chucked them into a drill and held a flat file to the heads to make them fit through the suspension tower. It is much easier than it sounds. Really, it is.