Even the Tri-Tachyon base may not be full of high-tech ships. Much of the ships I saw by the time I got access were more of the same as found in other systems. I saw an Odyssey, and a Doom, but the rest are typical low tech and mid-line stuff (Falcon, Hammerhead, Sunder, Lasher, and the like... and more open market junk).
After thirty levels, I am still stuck in my starter Wolf because I cannot find any better high-tech ship - no Tempest, no Hyperion, no Medusa, no Aurora/Apogee (and no Astral/Paragon, but I cannot use it anyway without Leadership).
I have not found Light Needlers anywhere!