I can't imagine how that went. How do you align the shaft?
I helped a friend, along with a group of helpers, use the boom to lift the V-Drive setup (complete) out of his Willard 30. Cockpit sole functions as a removable 'hatch' in that particular boat. Heavy and awkward as heck, albeit handier than many other boat configurations.
Tried to assist another friend with an alignment for his Valiant 40; V-Drive also. C&C and Hinterhoeller used them; even Ericson used this in one model in the late 70's. They really do increase cabin room. Big tradeoff in servicing them. I would not want one.
Alignment is a physical and mental exercise, and also servicing the stuffing box can be like working blind.
Only advantage is that they are lots "safer" for boats than the cheaper sail drive that a lot of production builders installed to save production costs and shift major service costs to owners after the first 7 to 10 years.
Like so much of life, it's just another
Compromise to learn to deal with.
