That is hell of a schedule you got there! I don't think you would need the field PhD Economics courses (such as International Trade Theory, time series etc) and Macroeconomics (it does not have signalling value since the class differs greatly among schools); your time would be best spent RA'ing for a professor and spending a significant with that.
As for your math courses, abstract algebra carries little weight (since its not applicable to Economics). If you are taking it to fulfill a math major then it is reasonable. Graduate Real Analysis would be a better option if you are keen on taking a graduate level mathematics course.
For undergraduate math courses, my suggestion is: Analysis II, Metric and Topological Spaces.