I replaced my own pump several months ago, and our details sound similar as to depth and type. Along with your "handle" and safety rope, do you also have a release cable or is that actually what you are calling a safety rope?
My pitless adapter needed a piece of 1" pipe for pulling the drop pipe and pump, and I made sure that pipe could not possibly fall below the top of the well casing if I let it slip after I had pulled the release cable. Getting the catch to release was a bit difficult since it had been there untouched for nearly 15 years.
Be sure to first disconnect the power, then make only calculated moves while knowing what to expect and having a second set of capable hands hanging onto whatever else is available other than the power cable.