You've got nearly all but (search for them in this forum):
+ HTL Elyssium
+ HTL Zeus
+ HTL Ravana (be careful it's quite buggy. I wouldn't use it if I were you).
+ HTL for terran gun platforms
+ HTL for countermeasure.
Also. Some of ships have env full mirror effects. You can find some fixed versions by Vasudan Admiral
here. But unless you find them really bad and unless you DO know how to manage them, I wouldn't update them either.
(And also some models have a small bug with turrets. Release builds don't complain about them).
Just update the very first models and wait till vp 3.6.9.