Mix some tups and linseed oiltogether and use to clean the woodwork, takes a bit of elbow grease but a lot of the dirt and grime will be removed.
Electrolysis is the answer for rust, safe and very effective, am sure Patrick will agree....... you may loose the bluing/browning though...... you could just boil it in de ironised water, the rust will break down, it how original bluing/ browning was produced, the item was rusted then boiled and then carded.