So far the obvious. Ebay. Max BMW. Then a couple dealers in Wisconsin. Then I contacted bsk speed works in the UK. They said they didn't have any and BMW Germany doesn't either. The dealers I spoke to said that there aren't any in the world lol. So now I'm looking at either swapping in newer style connecting rods and bolts or maybe having them custom made. I guess I could get an 1100RS engine used and start over... In some ways cheaper than new connecting rods.