Ah yes. It ran all the way to the donation place. You had to replace three different systems because you didn't properly diagnose and fix it the first time either by bad luck or being too cheap to buy parts. The faulty alternator likely took all those sensors and coils with it. The water pump failure probably caused hot spots or a complete overheat due to leakage or insufficient flow, which will warp the aluminum head and ruin the head gasket seal. Clutch slave and master usually fail due to contamination or dry rotten seals and often fail in a similar time frame. Did you replace the timing belt/chain and water pump at the recommended interval? Did you replace the brake and clutch fluid once a year? Did you check the voltage on the initial alternator you installed or had installed? My best guess is that you didn't or your mechanic didn't. Worse yet, your mechanic could have advised you to get cheap/inferior parts when the OE suppliers part is available at the auto parts store. Is this your fault? Maybe or maybe not. Very few cars are truly that unreliable. I had two SAAB's that were awesome cars despite their reputation. They never once stranded me and both had beyond 120K miles. If you can't afford to keep a car in good repair, sell it and use the money to move to a place with good public transportation. Am I cold hearted? Perhaps, but I have to drive down the road every day next to people who don't give hoot about the condition of the most (or second most) expensive thing they own. Cars are like pets. Care for them and they can last for an extremely long time. Doing the minimum amount of maintenance and not educating yourself about what the car needs, will screw you and your wallet. Hint: there is a maintenance schedule in your owners manual.