When we bought our Rav4, I ordered the Weathertech mats and cargo liner. Best first purchase investment. For the cargo liner, I also bought a segmented cargo net. Groceries slide all over the place without it.

Vantrue has dashcams on sale. A professional installation by SpeakerBox here in Huntsville was $400. If you buy the rear camera, you have to remove the ceiling liner to run the wire.