One of my fellow players wants to make a physical model of the Partisan , which is a Conquest-class Star Galleon. His first attempt was, well, weird. He used strict descriptions in the Battlefleet Koronus book, which is 5.1km long by 0.7km abeam at fins approximate. He thought that the fins might be 100-200m long from the main body, making the body between 300-500m wide. The result was that we have a TALL ship, that, not including the two towers (no pun intended), is about 1.5km tall, and about 300-500 meters wide, and then 5.1km long. It just seems unsymmetrical.

Has there been any attempt to make a 3D model of this ship, that anyone knows of?

Not that I know of, no, but for what it's worth I also made it tall and thin. In this case I went for 0.4 km, or 400m.

Well the models of BFG and of course BFG: Armada are the only canon 3D representations that we have seen so far, and in both Imperial ships are almost universally spine-built, the Conquest-Class being no exception, and those tend to have that high-sided, thin look to them.

BFK actually goes into that (pg. 48 first paragraph)

do love the conquest

Well, what he's got so far looks rather like a strange rail-road spike. He's using clay to get his proportions and structures down. From what we've read, there could be some ambiguity from ship to ship; after all, it's not as though these ships are mass-produced in factory precision. One of our concerns is the snout, and the aquila on the front. We have an Armoured Prow on there; should that be taken out in place of a more "armoured" looking prow to reflect that component?

Also, we have a Port-side Hold Landing Bay and a Starboard-side Jovian-pattern Landing Bay; would either of those be located in the ventral structure near the keel?