I'll be honest, I have no idea what all that stuff would cost. I often think I know what something will cost at my mechanic but then it ends up costing way less or way more. But have you ever considered retiring the old beast? It seems your repairs might be more than the car is worth. Granted, it would be hard to part with a car that you've owned for 12 years, but financially, it looks like it's unpractical to fix all that stuff via a mechanic. If you did it yourself, like a hobby or project or something then I could see the sense in it. But a mechanic doing it? Again, probably not financially practical.