At that kind of mileage, I would do the dampers too. Remember, the wagon dampers are different than all other foci.
The alignment probably won't help your rear end hop. This is more likely a symptom of blown dampers (lack of control of wheel motion), or sway bar binding (additional uneven spring rate).
Parking Lot Hero
2008 WRX daily driver
2003 ZX3 23D Autox Car 42 FSP
"Hella Functional - Raced, Not Hard Parked"