I picked "Why would GTVA invent the wheel anew?" route
. Both new terran and vasudan heavy corvettes are based on lighter ships [Deimos and Sobek] from FS2. In fact, NuPhobos was modelled with HTL Deimos hoovering above on the same Blender scene.
It will further differ from Deimos on texture level. While plating patterns, details and painting layout will be similar, NuPhobos will be purely gray. I may also prepare 100% Deimos-accurate texture variant.
I prepare her for christmas model release.