The vessel itself
Sails, teak, a bowsprit or a clean modern deck. The hull class changes the whole register of the set — say which you want before the date is locked.

Occasions
A charter booked for the shoot rather than the cruise — the vessel as a location, the block planned around the light, and nobody else in frame.
The block is planned around the light, not around a route.
What the hull gives you
Tell the desk the shot list and it picks the hull and the run to match, rather than handing you a boat and hoping.
Sails, teak, a bowsprit or a clean modern deck. The hull class changes the whole register of the set — say which you want before the date is locked.
Nusa Penida cliffs, the Bukit limestone, or open water with nothing in it. Reachable inside a half-day block from the right marina.
The last thirty to forty minutes before sunset, held by the captain repositioning rather than by you chasing it.
Date, how many people, and what the set needs to look like. The desk replies with the hull, the marina and the light window it fits.