King cultivator points

I've been using a King cultivator on the Cub. I use just one, right under my nose up front. It gets down into the soil and does a nice job. The points on it, however, are well worn, pretty shot--there are just 3 of them...and one is long gone. I'd like to replace them and would like to know who sells them, which point is most used, other info. Looking in the Agri-Supply catalog, there are Field Cultivator Points of various widths (narrowest is 1 3/4") and different lengths. And then there is the bolt type.

Thanks.