This setup does not require you Arms Lab IX, and lets you all cargos until lvl33, excepting lvl30 (due to the second cruiser). I am currently using it on sector 300, if you want to check it out.
All 6 ships would be broadsword:
Armor: Tritanium 1
Weapons: Hydra 1, Hex 3 or Gemini 1 (Anything with >40 efective dps and per ship, not energy and ~4000 rangr recommended - not counting destroyer range increase)
Especials: Iridium Arrays if projectile, AM warheads if explosive
I am using this setup with both Hydra 1 and Gemini 1. Tried thermal beam but they take too long to destroy the cruiser, destroying at least three broads. It works great even for VSEC 27.
Repairs: Each ship would take 250 seconds each (instant repair) should they ever be destroyed. So, have fun with them