Ok, I'm using 16,764 tons for the unit weight. Template D is the size (even though that's a little long... C is too short).

Chassis: Base (0.17), TL C (1.14), Armored (1.5), Submersible (1.8 ): 0.52785 total multiplier, **8,849 tons**

Engine: Base (0.009), TL C Fission (1.15), Movement Factor (2 Cruise yields 8 ): 0.126 total multiplier, **2,112.5 tons**

Armor: 927 points of BAR 10 at TL C (150 kgs per point): **139.5 tons** (155 Front/Front Left/Front Right, 154 Aft/Aft Left/Aft Right)

24 White Shark Launchers (120 tons each): **2,880 tons**

24 White Shark Missiles (40 tons each): **960 tons**

4 Thunderbolt-20 Torpedo Launchers (closest to "heavyweight torpedoes"): **60 tons**

27 shots of ammunition: **9 tons**

Field Kitchen: **3 tons**

15 Officers: **150 tons**

140 Crew: **700 tons**

Consumables: **300 tons** (387 days)

Cargo/Spares: **600 tons**