Just the stock shocks with some 40weight oil in them will be sufficient for just bashing and jumping. Revo shocks are about the best on the market and will handle anything you put them through.
---------- Post added at 11:41 AM ---------- Previous post was at 11:29 AM ----------
GTR makes some great shocks for the revo but I have personally never used them. I jump and bash my revo pretty good in a rock corry and the only thing I have ever had to do to mine is I often change the shock oil out with new. My revo handles great with 40W shock oil doesn't bounce everywhere and corners really well and takes jumps very well so I haven't found the need to upgrade my shocks just yet.