I am currently working on a Ghost MOC from Star Wars Rebels. I'm basing the design of DarthTwoShedsJackson's Ghost. I really dislike the original Lego set because its too small and has no interior. I'm making it UCS scaled and it would really help if anyone could give me some advice.

 

Well I haven't done any big mocs like what you want to accomplish. But all I can think of what you need to start with is a good frame to hold the entire thing together. a good foundation is what is needed, then fill in your interior where you can and modify your structure. Are you working with real bricks or in a program?  I would hope DTS would come in a and comment, since he is the one that has the experience with the thing. Good luck, this project will be a big challenge. I have seen many people say they are building one but never follow through. 

Thanks, I will take your advice and see what I can do. I'll try to post some pics from LDD!