Starter Motor for 1.6D PN Assistance

[Joshoua]

Hello all,
I own a T25, 1.6 Diesel (the CS model, non turbo) from 1981. A few days ago, the starter motor gave up.
We removed it with my mechanic and the front teeth in the gear are broken. So it needs either to be fixed or replaced.
In Cyprus (where I am located) I couldn't find a replacement starter motor nor anyone willing to fix the existing one.
So I need to order a replacement online. I am a bit confused with the part numbers though and I would be grateful if you could help.
My starter motor is 068-911-020 part number.
The replacement I am finding from Justkampers is 068-911-023/JX.
When searching in ebay, I can find other motors that seem to fit as a replacement:
This
https://www.ebay.co.uk/itm/STARTER-MOTO ... SwfTVaolbq" onclick="window.open(this.href);return false;
This
https://www.ebay.co.uk/itm/NEW-HELLA-CS ... SwzaJX5UVK" onclick="window.open(this.href);return false;

Can anyone help me pick the right one?
Can I just replace the front gears/pinion and not the whole thing? What's the part number for that?
Thanks in advance!!

Stavrinos

[multisi]

I have 2 diesel starter motors for sale a new old stock genuine vw or a very low mileage reconditioned starter, only 100 miles. I can post to you.