The factory team has all the graphite, as well as some other nice aluminum and titanium hop ups.
However, for bashing, graphite is not the way to go.
I would say that overall, it is cheaper to start with a factory team kit new, buy a plastic chassis (popular upgrade for more traction), and go with plastic front a-arms at a minimum and pickup an RPM larger front bumper for your bash sessions.
If you need NIB T4 parts if that is the way you go, look up on ebay right now, I listed a WHOLE LOT of NIB T4 parts, many many sets of a-arms, towers, etc. there. If you are bashing, you will need parts
Losi is a good vehicle too, so if you like that, don't be worried.