For me the simple starting point was:
B4
X6 kit
E-speed hangers (I managed fine with the stock turnbuckles, cut them down if you have a problem)
Limiters for the rear shocks (to prevent the standard axles popping out at full droop).
Weights...roofing lead works a treat! Brass is more bling but expensive.
That works fine for me running at a club, and is has plenty of setup flexibility.
If you want the extra droop (useful for rougher outdoor tracks) then add the longer axles (and spacers!)
The many other optional parts after that are subtle setup tweaks (depending on your driving level you may not even recognise the difference!) or bling
, I'd suggest getting to know the car and where your running it before deciding on those.
AE shocks are fine too, just that some find them harder to build than the losi's. Some put Losi pistons into the AE shocks as they do feel different on the track, again I'd wait until you've got used to the car.