this accelerating space ship is out in the middle of nowhere and we're ignoring the graviational attraction of the space ship itself because its mass so much less than the mass of a planet.
yes, both beams bend the same amount.
that's true . that is what GR says. in both cases the beam of light is in reality perfectly straight but appears to the observers be slightly bent because, in the spaceship case, the observer is in an accelerated frame of reference and in the earth's surface case, there is warping of spacetime because of the great mass the observer is in the vicinity of.
that's non sequitur, as far as i can tell.