I am trying to find the best way to pack and go an assembly from my networked computer onto a stand-alone machine(work from home), then once I'm done editing a part, re-pack and go back onto the network machine. I want to eliminate/ minimize the number of duplicate files created, and only over-write the files that I changed.
I don't think Pack & Go will sort the files out by editing date. But what's the big deal about overriding the files? Just do it. Don't forget to collect the drawing files along with the model ones. That is overlooked often enough.
Are you using Vault? If so then just check out the files out to your local working folder then pack and go them to a thumb drive to take home then when you bring them back from home copy and over write the ones on your local drive and check back in.
If you are not using vault I would pack and go the files from the network to a location on your local machine them copy those to the thumb drive, do what you need to at home them when you bring them back, copy and over write the ones on your local. Then call them up in a session of Inventor and do a file save as back to the network.