So, I'm instructing in the PA-28R-180 atm (we're talking a 1960s airplane here), and I'm having a really hard time finding anything worth using for reference material in regards to teaching the airplane to students.

The POH itself for the airplane is impossible to acquire in any store, as they only sell the PA-28R-200 POH.

Does anyone have a PDF of the pa-28r-180 POH, or any good reference material on the limitations and systems?