I still prefer the stock BC rather than Supermod, the ships seem more out of balance to me. I say beat it first, then download either KM1.0 or the Aftermath mod, thats really shaping up into a heck of a fun mod
I don't remember it being a hard battle, but its a crazy battle where you need to keep moving targets, I would focus on disabling either their sensors, torpedos, or impluse engines during the battle. The torpedos are what causes the most damage, the station can last a long time under phaser fire. Sensors is another good one, they can't hit what they can't see, same with engines, if their gone they can't attack. You don't need to destory the systems, just disable them good, and move on, once you disable them then you can destroy them. Also if the station is taking damage, select the station and hit "J" it will then move your target to the ship attacking, handy. Keep a eye on the station, disable the ships, when one ship is doing alot of damage, select it and disable. Its a long battle and you can't win it with brute strenght, so you have to use tactics