Are these rings for 75mm boretop ring 2.5mm wedge type chromed2nd 2.5mm3rd 2.5mmOil ring 4mmI need them for Shibaura S070 S700These rings have the same dimensions as the ones I need.The Yanmar 2tr13 seems to be the same size as well.Can you please confirmDo you also have finished or semi-finished sleeve to resleeve the cylinderwhich is ID75 x175mm long.