I possibly have a job that they basically built the bldg around a genset. It is a very large Caterpillar diesel. I need to get it out of the building. It is in its own room w an i beam frame. It will fit out the doors, and the exit to the building is a loading dock height dble door. It will fit out there as well. I just want to know if anyone has done something like this before? I want to try and salvage the generator and not damage it. My biggest issue is getting it off the base and onto something that i can roll it around on. Skids?? im guessing it weighs less that 3500 lbs. Any ideas would be appreciated.