Diopter site for m96B Swedish Mauser

Attachment 27413I am interested in obtaining a diopter site for my m96B Swedish Mauser. Please see photo for what I am talking about. Site that fits these two diagonally placed tap holes.

Does anyone have any suggestions for me? Where should I start? I am not knowledgeable about these sites and have not done much research yet.

thanks you gun nuts!

There are usually a few on eBay coming from Sweden. Soderin and Elit/Elite seem to be the most common. They usually cost between $100-$200, which isn't bad considering that when I've seen them locally in Australia they are more like $300