For part numbers look on e-bay. I bought a book
that lists part#, labor and dealer prices. They
are listed by group #. This is a part of the dealer book and starts at 14-1 to 14-134 and is
great for estimates. Most of these books sold are
4 or more years off for prices, but the neat thing
is that with labor hours listed you can figure out how long a job it takes for you to do the job.
unless you are a tech you can figure 2x the time.

The book that I bought for $15 covers all models
to 1995.

Hope this helps,
Gary