440 duster starter?

Hey everyone, I have a 440 duster with a 727 and am looking for a starter for it, what is everyone using for one? I have heard about using one from a late 90's dakota with the V8 but came across one and it seems to almost fit but the top terminals come into the side of the block and doesn't quite fit. I have filed it down a little bit but still doesn't work. Is there a specific year and model that i can walk into the local part store and get?

Thanks for all the help