You listen better than my own kids! Does that mean you are smarter? If you attend Duke University...the answer is, YES! LOL!
Once the head gasket is fixed, I think you'll be OK. Just remember, there's always something that could be done on any 10 year old car. Try and keep a $500-$1000 emergency fund for repairs.
Soon, you'll forget the disappointment and enjoy what owning your first Mercedes is all about.
91 300E 120K
90 300SE 275K (sold)
92 BMW 525iM 120K
90 BMW 525iA 175K
85 300D 175K (sold)
84 300SD 245K (sold)