I still did not got Kadur Caliph Battleship (I have both Vayra sector and Kadur Remnant). I think i have version before 08-29, but it should be fixed beforer this version.
Cryosleepers are sometimes hide in totally worthless systems- most extreme i can remember is a zero planet system, where sleeper was on egde of furthest , giant ring of asteroids, and i hit it by accident.