The death star is supposed to be the size of a small moon, its a bloody massive sphere, the same reason we don't have the Borg cube or sphere, I'm not sure it'd fit in with the rest of the Freelancer ships... The death star also has the "Blowing up planets" thing, that would be fun now, watching some n00b in a Deathstar shooting Malta "I R P\/\/|\| |-|4X()RZ!!!"or whatever... just, NO.
Either way, Zoners have a massive Juggernaut, the numbers on that SHOULD be limited to 1 or 2 but, for some reason, I suspect that lots of random people have 1 or 2, Cruisers... NO, gunboats, maybe, they don't need as much funds and, I've always thought of them as VVHFs(No typo) no matter what people say.. But, it shouldn't be as good as the other gunboats...
I'm not so sure about Slave 1 either.... its a very unusual for a Freelancer ship to look like