Take a closer look at your list. Prioritize and maybe ask us where to start. Some of your items may be cheap and easy, some may be answered with "let it leak".

For example, I'll tell anyone with a slow seeping oil pan leak (one-two drops a night) to let it be. The time/effort for that isn't worthwhile IMO. Especially if the car is going to rust out in the next year. Save the money for the next car.