Details are slowly being added to the master files, its a massive job and really only for the serious enthusiast to make every rib and detail that this design has.
If you need I have a ARMD in vector which i haven't got round to test building yet. If you are interested let me know.
Now a shelf of Enterprise.......... better get building!
I ave also searched mightily for this model but have never been able to find it. The only place it is available for a price is a certain pirate website but I wont guarantee that version.
I would suggest building stage one and attaching first and then placing the engines, with the engines in the way you don't have a flat base to push against when joining the parts. Once stage one complete then add the engines.