I'm working on an AAR for the Korx, but since it's Thanksgiving and several of you might be playing, I thought I would point this little tip out beforehand.
Check out the Korx Military Starbases. I'm playing ToA 2.00. Here's the deal: you research one tech--Starbase Victory Strategy. It's early game, just after Space Weapons, not expensive. Once you do that, here's what you've got available to you:
Warp Module. -2 to enemy ship speed. Available right away.
Beam Assist. +1 to beam. Available right away (as usual).
Attack assist. +2 attack/all categories. Available right after the Beam Assist.
That means after just 3 constructors (beam assist, attack assist, and one to start the starbase), you get +7 attack to all your ships. A Tiny hull can run as cheap as 50bc at that point--lower, if you can get Scatter Gun. This is in addition to Protective Fields (+1 defense/all categories, which everybody gets), which requires another cheap tech and another constructor.
For a fourth constructor, you can throw in -2/enemy ship speed. Which in all likelihood, will knock him down to 1 speed. Throw up these babies to protect your other starbases, and never get blindsided by a rogue enemy ship again. You can even use your constructors you would otherwise have used to add those sucky starbase defenses.