Brushless Setup For an 18t

What would a good bl setup be for an 18t. i have seen the mamba 6800 run on a 2s lipo pack and have seen a lehner 10 series kick its a$$ but anway i am pretty open to ideas as long as it is reasonable. i like the lehner 10 series motors but i do know ho much they cost or what would be a good esc to run with it. any info would be greatly appreciated.