Now how do I get it into Rocksim....?

[PunkRocketScience]

Okay, here's one for all of you rocksim whizzes...

I want to build a rocket with a "hammerhead" nose (think of the rebel blockade runner in Star Wars). Is there a way to model this is rocksim?

 

[Missileman]

You could use a slightly oversize rounded nose.
Keep in mind you wont make an exact replica but should be able to come close for stability checks and sims.