Buy some tools, go to Tech section, search.

You yourself can do the brakes and rotors for around $200.

You should be able to pull off "B" for less than 100.

Tire - go to Tirerack.com. Have them deliver the tire to your local tirerack affiliate. Probably cost you less than 100 each, delivered, mounted and balanced.

Trans, I'd ask a bunch of questions in tech before I fork over 125. But you may have to fork it over anyway, so let the dealer do that.

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Thank You!
Fred
2009 ML350
2004 SL600
2004 SL500
1996 SL600
2002 SLK32
2005 CLK320 cabrio
2003 ML350
1997 C280 Sport