In my opinion.
If you are driving the car the brakes are #1
The water leak may or may not be an eminent issue. IF coolant is getting into the oil that would be a bigger issue than just leaking out.
The electrical needs better diagnosis. If the alternator being sent is a direct replacement, swapping that is easy and will rule out the alternator as a cause.
There are a lot of what if's here.
So let us know some of the answers
- Are you driving the car.
- Is coolant getting into the oil