Here's what I posted in my Kzinti Empire thread a few minutes ago, for one of my members:
turn 1 - lease buy lab on a bonus tile, research Xeno Research
turn 2 - lease buy 2nd lab, research Advanded Computing & 1st Minitiarization tech
turn 3 - lease buy Tech Capital, research Impulse Drive
turn 4 - upgrade lab, research Space Militarization
turn 5 - upgrade 2nd lab, research Spore
turn 6 - start buying economic structures, finish Spore
turn 7 until end of game - more economic structures, buy first spore ship, and start whacking the enemy, research diplomatic techs and sell tech to minor civs to stay out of the red economically, get Interstellar Republic, Star Democracy, Xeno Entertainment, etc, to up morale, taxes, and therefore economy score
Yeah I stopped getting Xeno Ethics after realizing it wasnt doing anything for me. I always build the Econ capital, and almost always the Political capital, on my homeworld.
No more hints please...I want to figure the rest out on my own.

I did get a score yesterday equal to my personal record, but not any higher yet...
Sentient species taste better...