my ideal setup for 2wd SCT would be:
VTX10 Black Edition
7.5 T motor with optional 12.8 rotor for extra torque
Pro 6 Super Cap.

This setup is also perfect for 17.5 too. Just swap out the motor!
One other thing, I always tell people if there is even the smallest possibility that you might run 4wd at some point, spend the extra couple of bucks and get the 'R' versions of our esc. It's not needed for 2wd over 6.5T motors, but I have found that I hold onto electronics a lot longer than cars