If you want a fuller sound go for 6x9 Components. However what you have listed will work. I'm just picky when it comes to my audio selections. Also i'm not sure what OHM that monsoon amp is pushing to those speakers. You might look into that.

If you want factory replacements hit up Morad Parts Company - 3800 Motors, Transaxles, & Stock Parts and see if they have any in stock from salvaged cars.