Plant Layout - Inventor vs. AutoCad - Autodesk Community
I don't know why the conversion to 3D in Inventor should be "too big" compared to a conversion to 3D in AutoCAD. In fact there are a lot of advantages to Inventor assembly file compared to xreffed AutoCAD files. If the project itself becomes "too big" to handle based on your Inventor knowledge vs AutoCAD knowledge you could always take the work ...