Okay so I read an interesting little tidbit about the base stats, the three thousand number for turbolasers includes all the cannons, before they're grouped up into batteries or turrets. Going by the revised Imperial Star Destroyer MK1 stats, which lists about two thousand turbolasers, that would roughly work out to about 15 cannons per battery. Therefore, I've revised my armament list as follows;


Armament:
100 Heavy Turbolaser Batteries
*15 Cannons Per Battery
100 Turbolaser Batteries
*15 Cannons Per Battery
10 Ion Batteries
*10 Cannons Per Battery
10 Missile Turrets
*4 Tubes Per Turret
*25 Warheads Per Tube
20 Tractor Beam Projectors


Total Base Armament:
1,500 Heavy Turbolaser Cannons
1,500 Turbolaser Cannons
100 Ion Cannons
40 Warhead Launchers
1,000 Warheads