For more limited resources than required for an aerotowed AS-K21:
A. Winch. A cheap way to launch students to solo.
B. Ka13. Comfortable, nice handling (better prep for slippery ships),
can do limited aerobatics, climbs great on a winch, and has factory
support.
If you insist on a Schweizer, go for the 2-22, which has better
handling qualities than the 2-33.
But one handicap nearly all US operations seem to have is the desire
to park the fleet outside in the weather, adding complications.
Want a demonstration of inexpensive? Here's a 2-22 auto tow video...
http://www.youtube.com/user/dacekner...10/pLUAS7wD_eo
Josh goes XC in his Ka8 off these tows.
Jim