Cutlass (cutless) for beneteau 36CC

[Bahltech]

Hello all, Im wondering if anyone would know the proper length of the cutless which was original or which is know required on my boat. The Shaft is 30mm and the engine is a Yanmar 3GM30F. I did a couple of phone calls to beneteau dealers and they either want to sell what they have in stock or have no idea what length should be fitted. 100 or 120Mm.

I know it wouldn't make much of a difference but considering my shaft is 73 inchs long with just one point of support I want to install the right part.