I have a TSX Wagon. I like it a lot, but it's far from perfect. The rear seat room is abysmal. It will not do well with 2 rear facing car seats. It is a huge pain in the ass just to buckle the seat belt over my daughter's booster seat. It seems like less rear seat room than there was in my '05 LGT, however I never actually compared dimensions.
Face it, you are on a Subaru forum. You have described an Outback. Buy a used Outback XT and be done with it.