Ah, OK. The cargo bay door being that high up wasn't an issue in my eyes. They can build rockets after all, so they should be fine with engineering a platform a

Ah, OK. The cargo bay door being that high up wasn't an issue in my eyes. They can build rockets after all, so they should be fine with engineering a platform and a lift. Edit: Numbers - for fun: if the cargo bay door is 2/3 up the rocket (at 33m from the ground), and someone fell off the platform of the crane at half this height (16m), they would hit the ground with a speed of 7.2m per second which is the speed they would have after falling a distance of ~2.6m on Earth.