I went the short stroke 60 route with the electric component choices in my Phoenix 5 I fly in SPA.
Rimfire 60 650kv motor
HK redbrick 70amp opto
Zippy 5000mah 40C 6S packs
I'm right at the 1400watt limit for SPA, and I'm turning an APC 11x7 around 14.1-2krpm. Has more than enough power for Expert.