Timing belt is definitely a DIY job on a 960. IIRC the '92 960
has a 30k timing belt change interval, so after a few years owning
a car like that you would be able to do it with your eyes closed. :-)
Takes a bit longer than an oil change, and putting a timing belt
back on requires some patience, but definitely a job that a backyard
mechanic can handle.
Some pre-1995 960 are known to suffer from a block porosity problem,
not sure how to check for that since my car is newer, but check some
older posts and the 700/900 FAQ. I would also be concerned about the
condition of the suspension (like on any older car) since the cost
to replace worn shocks, bushings etc (with labor) can easily top
the asking price of the car.
I think most common parts for Volvos are definitely not overpriced
compared to other brands (check fcpgroton.com, eeuroparts.com to
see for yourself), definitely it should not be more expensive than
to service a Saab...
Vlad
--
'98 965