I wouldn't really bother with the Dreadnought too much as going by the info the Daystrom Institute has on it you're looking at a possible Fx annomoly, and even if it isn't a 4.5Km long starship is not typical of Star Trek, ya the Borg Cubes equal it.
Resources, tech & crew wise it is pushing the limits, for I don't think it's max warp speed is very high.
What I'd suggest you do is think of what the requirements of your story are and pick the most appropiate for the role and do some more research.
For example I've got one on the boil where an organisation in the 20thCentury acquires the Starfleet database from 'round the 24thC. They have to take little steps in understanding the tech bolting the new engines onto existing airframes, before building an adapted Defiant-class.
--Rod.H
Resources, tech & crew wise it is pushing the limits, for I don't think it's max warp speed is very high.
What I'd suggest you do is think of what the requirements of your story are and pick the most appropiate for the role and do some more research.
For example I've got one on the boil where an organisation in the 20thCentury acquires the Starfleet database from 'round the 24thC. They have to take little steps in understanding the tech bolting the new engines onto existing airframes, before building an adapted Defiant-class.
--Rod.H