In case somebody wants to make a DLL for this (might be me, but I have some other things to finish first).
http://lpre.de/resources/articles/AIAA-1998-3361.pdf
Contains descriptions of the NK-33 engine and pre-launch and ignition sequences. And schematics of it, test data, instrumentation, recommendations what to change (which had been done in the Aerojet version)
EDIT: And of course good drawings of the engine... if this is needed. At least the accurate distance between nozzle exit and engine gimbal might be useful.
---------- Post added at 03:33 PM ---------- Previous post was at 12:57 PM ----------
@Donamy: Can you also make the "zeroth" stage that contains the ground-LV umbilicals and the hold-down posts?
You can see it fairly good in this photograph, it surrounds the first stage engines.
It is connected to the launch complex, a similar technology had been used for the Energia launcher.
Here you can see it in the final vertical position. The other connections to the launch vehicle are air conditioning ducts.
(And now we just need to convince DaveS, that his expertise for ground equipment meshes is needed for making the launch complex... :rofl: )