A versatile flying lead (VHL) termination head system comprises an underwater vehicle interface, an interface plate, a termination frame, and an adjuster, disposed proximate the termination frame's connection end, which is configured to provide a configurable declination angle which sets a hang-off angle of a device connected to the interface plate with respect to the underwater vehicle interface. A subsea termination head may be manufactured and assembled by obtaining a predetermined set of standardized structural building blocks that fit together to form a complete termination frame which is as described herein, using the predetermined set of standardized structural building blocks to construct a subsea termination head from the predetermined set of standardized structural building blocks substantially in parallel and connecting the underwater vehicle interface to the frame at a predetermined angle using the adjuster.