I haven't read this whole thread, so I don't know if anybody has suggested this but one option is to lower the car by using Legacy sedan suspension. It will lower your car by about 1 inch over the stock suspension. If the 3rd gen Legacy/Outbacks are anything like 4th gen, the suspensions are almost the same. The difference I think is the Outbacks have maybe different springs. I would suggest checking out
Legacy GT Forum for more info on your suspension.