Sounds like you're leaning towards a 1/10 2WD buggy, which is fine. How about something from the DT-02 chassis? It's a bit more modern than the ones you listed. Nothing wrong with them, but a few on your list are re-releases of older models, just for fun.Sand Viper is a good example. Or for 4WD, something like a Gravel Hound (DF02 chassis)?A bit newer than the DT-02 platform is the DN01 (like the Zahak), but it's more expensive.
I have actually looked at the gravel hound and the sand viper before and after adding the extra electronics it was just out of my price range. I would love to get one of those but they are too expensive.
plasma edge $120 (might be able to find it for a tad less)
That is exactly what I was looking for! I have never heard of the plasma edge before, but unless someone else makes a better suggestion then I think I will go with it.