I'd be interested in one as well, oval holed for an S.
Made my own for checking tie bar length from a block of wood and punching holes at 0 and 285 mm then drilling for 2 M10 bolts, adjust tie bar so it slides onto the bolts and that gives you a known length of 285mm, as its an M10 x 1.5 bolt each full turn of the eye bush adjusts tie bar 1.5mm ( I prefer removing either the top or bottom tie rod bolt to adjust so you can record the setting. Not sure of the exact leverage ratio but i think its just less than 2:1 so for a full turn of eyebolt its a 3mm increase.
A tool would make it a lot easier though
