I know this will be a late answer but for anyone else doing this job, the tub does fit through the door on the 64 safari or at least it did on mine!!!!
it will NOT fit straight through and out.....but surprisingly if you are outside the door, have the tub sat on its side, rounded corner section (the back of the tub) on the floor with the sink on the vertical at the door entrance. You should be looking at the back of the tub, sink side.
Then put slight horizontal twist ( i did it counter clockwise) and walk it out..........
Be patient but it will go!!!!
hope this helps someone out there!!