You most probably only had a 3 month or 3k warranty on the car when purchased. How come the car had 50,000 when you bought it & now it only has 30,000 now? Does the odometer go backwards? These items should not cost an arm & leg but I would try them out for warranty if I were you. Under the...
If you look under neath the carburetta at the back of the motor, it is down there about 35 cms to the left, it is a little difficult to get at but you will be able to. Have fun.
It sounds like you have a short circuit! check your wiring for the head & tail lights, also check out your battery, for loose connections. I hope this helps you find your problem.
It could be the CV joints, but the person who did the wheel alignment should have picked up on that, CV joints do that as well as grind when cornering. I've had that experience.
It sounds like a brake wheel cylinder has blown! If you have a friend mechanically minded it would not cost much at all. But take it to a mechanic? Who knows but it needs attention now.