Stampede seems to fit most of the OP's criteria. One problem though, is it's only 2WD. But that's what you get in a relatively inexpensive, light truck.
Once you start looking for durable 4WD trucks, you end up spending more $$ for bigger/heavier vehicles like E-Savage, E-Maxx - that run 2 motors, 2 battery packs, etc. Cost just keeps going up if you want that.
Maybe start with the Stampede and go from there.
PS - driving in grass is rough on RC vehicles, and the stock Pede tires (Talons) suck at it. Fortunately, Imex makes some great aftermarket wheels/tires that won't break the bank. I really enjoyed having these on my Pede when I had it:
http://www.imexrc.com/servlet/the-25...JA-WIDE/Detail
(hope I'm linking to the correct size - 2.8s seem correct, right?)