Geesh, Dennis! You still reading in "Threaded" mode?
Go to the top of the thread, click on "Topic Options", and click on "Switch To Flat Mode". If you don't like it, you can repeat and go back to threaded mode.
So the pilot-side door/hinges won't fit on my "H" model?
That's correct - the doors will not interchange.
The early model (straight-tail) doors are similar (identical?) in size and shape to the Cessna 120/140. The most obvious external difference is the 120/140 used two hinges per door, whereas the 150 uses three hinges.
The slant-tails all use a much larger, "square" door that has only two hinges. And the hinges are a different (stronger) design.