We are starting a BFG campaign striaght out of the rulebook. The battles will range in sizes and opponents, so my force must be versatile. I know we have the following enemy BFG fleets: Necron, Space Marine, Eldar, IN for sure. There may be an Ork, but I'm unsure. Basically, I need to be able to fight pretty much every race's fleet.

2000 - Adeptus Mechanicus Fleet

0 - Archmagos Veneratus

390 - Adeptus Mechanicus Battleship "Constantino" Retribution + Nova Cannon

275 - Adeptus Mechanicus Cruiser "Asclepius" Dictator + NC
275 - Adeptus Mechanicus Cruiser "Arcturus" Dictator + NC
230 - Adeptus Mechanicus Cruiser "Junius" Tyrant + Plasma Boosted batteries
230 - Adeptus Mechanicus Cruiser "Julio" Tyrant + Plasma Boosted batteries

145 - Adeptus Mechanicus Light Cruiser "Ignac" Endeavor + Plasma Boosted batteries
145 - Adeptus Mechanicus Light Cruiser "Idaeus" Endeavor + Plasma Boosted batteries

175 - 5 X Space Marine Hunter escorts
135 - 3 X Space Marine Nova escorts