Another 727 question

I know they used the SB starter location too.
I ve seen a lot of talk about finding one of these adapters to be able to have a wider selection of transmission options behind a /6. I've never seen any talk about a regular Mopar gear reduction type starter working or not working for such a conversion, it hasn't come up. But since the starter actually bolts to the trans, I'd think any starter that would fit whatever the trans came from would work for something like this. No?