Re: Dreadnought-Class Production Line (Spoilers?)
Maybe Vengeance started as an off the shelf Dreadnought (maybe even belong to a older class of ship to start with) and Marcus appropriated her for use a "new technologies" testbed. Funding for the ship doesn't have be hidden, the model on his desk is no big deal, and it fits with Kirk thinking they can outrun the Vengeance at warp.
- SeerSGB -
Good men don't need rules, The Doctor (A Good Man Goes To War)