Help needed identifying compatible starter motor Mini 32

[moniia]

Hello, I have a problem with a starter motor (thanks to own stupidity - we won't go there... ).
The thing is, I have no idea what I have replaced it last time with - lost the notes and photographs missed one crucial view to identify a compatible one.

The easiest option would be to get it off the engine and check but since my boat is circa 1500 miles away it is easier said than done. Buying it there will mean +50% cost, +500% time and 10x irritation

So maybe there is someone around who can offer some help.
The engine in question is a Sole diesel Mini 32, Sole part number for the starter is 13227001 unfortunately a distributor for Sole cannot help with cross referencing it and I'm for sure not paying 800+ pounds for the original part!
Starter in question is 1.6kW 12V and ... and there is a question how many teeth

If I'm not mistaken the replacement installed by me 2 years ago (the one I managed to destroy.... ) was slightly more powerful, maybe (just maybe!) from Mini 62, like on photo below (new one, red one is the old one).

Can someone shed some light on this issue?