I was trawling Shapeways and did find some pretty suitable ones:
1.
BFG Pre-Heresy Strike Cruiser![](http://images1.sw-cdn.net/model/picture/674x501_426150_153780_1338413388.jpg)
Probably the nicest, most detailed, most setting-appropriate out there. And probably mentioned before.
2.
Clipper Fast Transport![](http://images1.sw-cdn.net/model/picture/674x501_263390_277156_1338416260.jpg)
Has the prow design we all know and love. Though no printed samples. Also, less detail than the first one. The designer also has a couple of other designs of smaller craft with the same aesthetic.
3.
Gothic Battleship![](http://images1.sw-cdn.net/model/picture/674x501_69125_93985_1338413385.jpg)
This one captures the "Gothic", quite literally. Has a few other similar designs, as well as ground-based stuff too. Designer's page has a LOT of other designs. The prow, perhaps, can be acquired from some other sculptors. (There's one done by a sculptor on Resin Addict called
Zeus Prows) Combined with the aforementioned prow, it'd be quite suitable I think:
![](http://i174.photobucket.com/albums/w108/mangozac/BFGothic/Zeus%20Prows/Zeuss_final_1.jpg)