I think you should hang on to the Wagon as a daily driver... it's got plenty of power, though some lag from the auto tranny... it's fairly comfortable... has decent cargo room... is partially paid for... and
looks fucking awesome now that it's cleaned up and painted. Just get that bump out of the grill, get those headlights wired up properly (and if you really want to do it to it, I think I know how to fix the RHD pattern cut-off issue... it will involve taking the lights apart and cutting the metal guide in there). Finally toss on a set of 17" rims for the summer (I miss your formels man
). That thing is awesome!
The only reason not to keep the wagon... Legacy GT... 'cause it's everything you wagon is times 2.
All the rest of the cars mentioned are too expensive compared to what you'd be getting over the nice ass wagon you already have!