RE: NEW EVADER
The Evader can be made quite tough with a few upgrades.
Check out the [link=http://www2.towerhobbies.com/cgi-bin/wti0005p?&I=DTXD20**&P=Z]parts list[/link], replace the parts you break often with aluminum upgrades. If you don't want to spend a lot of cash I think the graphite parts are tougher but I'm not sure.
I'm pretty sure [link=http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXCTW1&P=7]this bumper[/link] fits the EP Evader with a bit of work on the screw holes. I have one on my Nitro Evader and it works great.
Also, the front and rear shock towers from the old Losi XX-t truck fit on the Evader. I have a front XX-t shock tower on my EP Evader and its tough as heck. I'm not sure how they compare to the graphic parts Duratrax offers (Supposedly stronger than the normal stress tech parts) and you might have a hard time finding them. Try calling your LHS and ask if they have any old XX-t parts lying around. If not, maybe they can order them for you.
One last thing, make sure to read [link=http://www.rcuniverse.com/forum/official_evader_st_thread/m_2492443/tm.htm]this thread[/link], it should be filled with a lot of useful info.