Have you ever played Galactic Civilizations? If you haven't, I'll go ahead and explain the ship creation process.
You buy a hull for a ship. You then add some features to it, like weapons and armor. Then, you can add some engines to it. After that, you can buy the ship.
I'm thinking adapting that to BrikSpace may be a good idea. Instead of a big list of ship classes, you can create your own. Do away with the CP limitation, but every 10-20 cp of crap you add to the ship takes down it's move, and have a maximum item limit. Then assign a CP value to each of the hulls you can purchase. Large hulls cost more, but can add more stuff to them, which generally makes them slower. Also, they can only take a slow engine. Medium sized hulls can take an even balance of stuff and move at a so-so rate. Small hulls can't take much stuff, but that is balanced out that they can move at an insane rate. Fighters and stuff should stay the same, I like those rules. In fact, you can even incorporate a "hull size" thing not unlike the Special Creations of standard 2005 BrikWars, and it takes damage that doesn't necessarily destroy parts that you must keep track of, but and amount of hitpoints equal to the size of the hull you use.
Armor sizes could be the same, but large hulls can take heavy armor and lower, medium hulls can take medium armor and lower, and small hulls can only take small armor.
You don't need to worry about balancing classes carefully, since you can just make one and if it's too powerful, it's also way too expensive.
Sound like a good idea? The only reason I didn't elaborate more is that I want to see if you like the idea before spending several hours typing up my idea only for it to be shot down.