This is so silly I thought I might actually be the first to attempt this.
I am a (currently) lvl 168 nanomage engi. I was told that all those symbs above 200 will be extremly tough, especially as there are only two Living (ql210) symbs: Ocular, and Thigh.
While the Ocular one is definitly worth it, it seemed impossible to do. And the Thigh one is just not much better than the Growing one (ql200), which is easily equipable at lvl 146. And for a nanomage, the Agility should prove almost impossible.
Well, I had a deeper look and I found a way. It wasn't easy, and took me 20 perk resets... and I ended up hitting the exact req on agi, +1 on int and treatment (psy is easy for nanomages).
I might add that because we do not have a high ql HQ in our org we don't get ability bonuses. And the universal benefits gave me +7 treatment (ql50 benefit). So if you want to repeat this you will need at least a lvl25 tower.
Here is my configuration for this twink, and on top of this I had ES, FG, NS, SFA and comp abilities.
Some things that would have made my life easier if I had them:
ql300 HQ (+7 abilities I believe)
higher univeral benefits (how much int/agi/treat do ql300 benefits give?)
2xql190-199 Eye of the Evening Star I killed 30 bosses in Scheol Catacombs and none dropped.
Thanks to everyone who helped me in this silly endeavor, and can I now add "first nanomage engi to equip Living Thigh Symbiant before 170" to my signature?
Edit: a post below details how I equipped the Living Ocular as well