I agree with Tom and Linework here. I too want to move to BIM or a 3D style workflow, and have experimented in doing so, with some various amounts of success. The fear of a major project and getting a team of 20 plus people on that same convention is daunting without a path before you. Not to mention trying to gauge how much can be modeled. Ive struggled with a single home model, couldnt imagine a full on building at this stage. Tho I will still admit I have alot to learn about the setting up of a proper model.