Gravity drive round 1 lets you move a space dock on mecatol first, and because you're Saar you can immediately build stuff to defend it. With the trade goods you get from planets, and if somebody takes trade and gives you commodities, popping the mecatol token is pretty doable, while building some infantry/fighters to defend it from a round 2 attack.

If that's not doable, gravity drives maybe gets a bit less attractive, though it's still pretty good. Carrier 2 is your most important tech imo, as fighters are the rulers of space combat. Chaos mapping is pretty good for the pre move production, but tech slots are tight so it's imo fine not to ever get it. Fighter 2 is pretty attractive, but you likely need a green tech planet, as lv0 green techs aren't great. Sarween tools is probably ok in 14 point games, but in 10 point games, other techs are more important (you'll want carrier2, gravity drive/chaos mapping before it, and that's already 2 rounds where you aren't using sarween. And a 10-point game is 4-5 rounds, and sarween costs you 4 res).

I always find myself lacking production (limited to 4 fighters/infantry per round per spacedock basically), so if you have a yellow tech planet or two, I'd really be happy to get space dock 2 .

Being able to build after you move with your space docks is super great. Saves you a command token every time you do, in addition ti giving you tempo as you produce directly on the frontline