Have an old scampi with Hydraulic drive. The prop shave is less than 4 ft long.
There is no place where a 19ft shaft would fit in my boat..
The Hydraulic stuff is eminently reparable so if there are no hydraulic leaks (my problem #1, now fixed), I would wish you well. Wonderful boat to sail. Rigging and hull are bulletproof in a colder climate.