Our understanding of the issue in the Taus is conflicted. The Outcasts have forever been fond of using heavy capital ships, but have never learned what effect they have in Tau 23 - that being nearly none at all - the concentration of rocks being enough to slow them down, and even immobilize them for fast bomber craft. The threat has always been from massed fighter attack, which is why I suggested the Hydra Corvette for your needs.
It seems your looking for something to counter the Ranseur head on - I hate to disappoint you, but the Kronos is not that vessel. Its design was supposed to be a battleship and carrier hybrid, but the size needed for both left it lacking in the area's of agility and the ability to maneuver through the dense fields of Tau 23. While its turret coverage is sufficient, its profile makes it vulnerable to long range fire - and the Ranseur is both better armed, and armored.
Thus, Colonial Fleet tactics revolve around luring Ranseurs and Storta's to Tau 23, trapping them in the fields, then using the much more nimble Thanatos, with Pytho support, to take down the threat.
However, we can give you the list of materials you will need, and our engineers, so the hull can be constructed at Singapore Shipyard.