Jus another option for the future.
google warehouse. open in sketch up pro. If you do not own download trial version you get something like 10 hours to evaluate free. export the object 3d dwg or 3d studio, bring into AC as an object. save object and place. This is a little dirty and does not give you control over materials. but good for entourage items. Just make sure you have surfaces checked in the export feature of sketch up.